Roll V8 back to 3.6

Roll back to V8 3.6 to fix x86 build, we don't have ucontext.h.

This reverts commits:
5d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0b
c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9
592a9fc1d8ea420377a2e7efd0600e20b058be2b

Bug: 5688872
Change-Id: Ic961bb5e65b778e98bbfb71cce71d99fa949e995

1 files changed, 71 insertions, 87 deletions

diff --git a/src/debug-debugger.js b/src/debug-debugger.js
index 802f6224..d254ee56 100644
--- a/src/debug-debugger.js
+++ b/src/debug-debugger.js
@@ -1,4 +1,4 @@
-// Copyright 2012 the V8 project authors. All rights reserved.
+// Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -26,14 +26,14 @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Default number of frames to include in the response to backtrace request.
-var kDefaultBacktraceLength = 10;
+const kDefaultBacktraceLength = 10;
 
-var Debug = {};
+const Debug = {};
 
 // Regular expression to skip "crud" at the beginning of a source line which is
 // not really code. Currently the regular expression matches whitespace and
 // comments.
-var sourceLineBeginningSkip = /^(?:\s*(?:\/\*.*?\*\/)*)*/;
+const sourceLineBeginningSkip = /^(?:\s*(?:\/\*.*?\*\/)*)*/;
 
 // Debug events which can occour in the V8 JavaScript engine. These originate
 // from the API include file debug.h.
@@ -286,7 +286,7 @@ ScriptBreakPoint.prototype.cloneForOtherScript = function (other_script) {
   copy.condition_ = this.condition_;
   copy.ignoreCount_ = this.ignoreCount_;
   return copy;
-};
+}
 
 
 ScriptBreakPoint.prototype.number = function() {
@@ -335,13 +335,13 @@ ScriptBreakPoint.prototype.actual_locations = function() {
     locations.push(this.break_points_[i].actual_location);
   }
   return locations;
-};
+}
 
 
 ScriptBreakPoint.prototype.update_positions = function(line, column) {
   this.line_ = line;
   this.column_ = column;
-};
+}
 
 
 ScriptBreakPoint.prototype.hit_count = function() {
@@ -477,11 +477,9 @@ ScriptBreakPoint.prototype.clear = function () {
 // break points set in this script.
 function UpdateScriptBreakPoints(script) {
   for (var i = 0; i < script_break_points.length; i++) {
-    var break_point = script_break_points[i];
-    if ((break_point.type() == Debug.ScriptBreakPointType.ScriptName ||
-         break_point.type() == Debug.ScriptBreakPointType.ScriptRegExp) &&
-        break_point.matchesScript(script)) {
-      break_point.set(script);
+    if (script_break_points[i].type() == Debug.ScriptBreakPointType.ScriptName &&
+        script_break_points[i].matchesScript(script)) {
+      script_break_points[i].set(script);
     }
   }
 }
@@ -587,7 +585,7 @@ Debug.findFunctionSourceLocation = function(func, opt_line, opt_column) {
   var script = %FunctionGetScript(func);
   var script_offset = %FunctionGetScriptSourcePosition(func);
   return script.locationFromLine(opt_line, opt_column, script_offset);
-};
+}
 
 
 // Returns the character position in a script based on a line number and an
@@ -595,7 +593,7 @@ Debug.findFunctionSourceLocation = function(func, opt_line, opt_column) {
 Debug.findScriptSourcePosition = function(script, opt_line, opt_column) {
   var location = script.locationFromLine(opt_line, opt_column);
   return location ? location.position : null;
-};
+}
 
 
 Debug.findBreakPoint = function(break_point_number, remove) {
@@ -629,7 +627,7 @@ Debug.findBreakPointActualLocations = function(break_point_number) {
     }
   }
   return [];
-};
+}
 
 Debug.setBreakPoint = function(func, opt_line, opt_column, opt_condition) {
   if (!IS_FUNCTION(func)) throw new Error('Parameters have wrong types.');
@@ -679,9 +677,8 @@ Debug.setBreakPointByScriptIdAndPosition = function(script_id, position,
 {
   break_point = MakeBreakPoint(position);
   break_point.setCondition(condition);
-  if (!enabled) {
+  if (!enabled)
     break_point.disable();
-  }
   var scripts = this.scripts();
   for (var i = 0; i < scripts.length; i++) {
     if (script_id == scripts[i].id) {
@@ -774,7 +771,7 @@ Debug.findScriptBreakPoint = function(break_point_number, remove) {
     }
   }
   return script_break_point;
-};
+}
 
 
 // Sets a breakpoint in a script identified through id or name at the
@@ -802,7 +799,7 @@ Debug.setScriptBreakPoint = function(type, script_id_or_name,
   }
 
   return script_break_point.number();
-};
+}
 
 
 Debug.setScriptBreakPointById = function(script_id,
@@ -811,7 +808,7 @@ Debug.setScriptBreakPointById = function(script_id,
   return this.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptId,
                                   script_id, opt_line, opt_column,
                                   opt_condition, opt_groupId);
-};
+}
 
 
 Debug.setScriptBreakPointByName = function(script_name,
@@ -820,7 +817,7 @@ Debug.setScriptBreakPointByName = function(script_name,
   return this.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptName,
                                   script_name, opt_line, opt_column,
                                   opt_condition, opt_groupId);
-};
+}
 
 
 Debug.setScriptBreakPointByRegExp = function(script_regexp,
@@ -829,7 +826,7 @@ Debug.setScriptBreakPointByRegExp = function(script_regexp,
   return this.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptRegExp,
                                   script_regexp, opt_line, opt_column,
                                   opt_condition, opt_groupId);
-};
+}
 
 
 Debug.enableScriptBreakPoint = function(break_point_number) {
@@ -844,15 +841,13 @@ Debug.disableScriptBreakPoint = function(break_point_number) {
 };
 
 
-Debug.changeScriptBreakPointCondition = function(
-    break_point_number, condition) {
+Debug.changeScriptBreakPointCondition = function(break_point_number, condition) {
   var script_break_point = this.findScriptBreakPoint(break_point_number, false);
   script_break_point.setCondition(condition);
 };
 
 
-Debug.changeScriptBreakPointIgnoreCount = function(
-    break_point_number, ignoreCount) {
+Debug.changeScriptBreakPointIgnoreCount = function(break_point_number, ignoreCount) {
   if (ignoreCount < 0) {
     throw new Error('Invalid argument');
   }
@@ -863,12 +858,12 @@ Debug.changeScriptBreakPointIgnoreCount = function(
 
 Debug.scriptBreakPoints = function() {
   return script_break_points;
-};
+}
 
 
 Debug.clearStepping = function() {
   %ClearStepping();
-};
+}
 
 Debug.setBreakOnException = function() {
   return %ChangeBreakOnException(Debug.ExceptionBreak.Caught, true);
@@ -945,7 +940,7 @@ ExecutionState.prototype.prepareStep = function(opt_action, opt_count) {
   var count = opt_count ? %ToNumber(opt_count) : 1;
 
   return %PrepareStep(this.break_id, action, count);
-};
+}
 
 ExecutionState.prototype.evaluateGlobal = function(source, disable_break,
     opt_additional_context) {
@@ -965,9 +960,8 @@ ExecutionState.prototype.threadCount = function() {
 ExecutionState.prototype.frame = function(opt_index) {
   // If no index supplied return the selected frame.
   if (opt_index == null) opt_index = this.selected_frame;
-  if (opt_index < 0 || opt_index >= this.frameCount()) {
+  if (opt_index < 0 || opt_index >= this.frameCount())
     throw new Error('Illegal frame index.');
-  }
   return new FrameMirror(this.break_id, opt_index);
 };
 
@@ -1094,12 +1088,12 @@ ExceptionEvent.prototype.eventType = function() {
 
 ExceptionEvent.prototype.exception = function() {
   return this.exception_;
-};
+}
 
 
 ExceptionEvent.prototype.uncaught = function() {
   return this.uncaught_;
-};
+}
 
 
 ExceptionEvent.prototype.func = function() {
@@ -1191,7 +1185,7 @@ CompileEvent.prototype.toJSONProtocol = function() {
   o.body.script = this.script_;
 
   return o.toJSONProtocol();
-};
+}
 
 
 function MakeNewFunctionEvent(func) {
@@ -1247,7 +1241,7 @@ ScriptCollectedEvent.prototype.toJSONProtocol = function() {
   o.body = {};
   o.body.script = { id: this.id() };
   return o.toJSONProtocol();
-};
+}
 
 
 function MakeScriptObject_(script, include_source) {
@@ -1264,18 +1258,18 @@ function MakeScriptObject_(script, include_source) {
     o.source = script.source();
   }
   return o;
-}
+};
 
 
 function DebugCommandProcessor(exec_state, opt_is_running) {
   this.exec_state_ = exec_state;
   this.running_ = opt_is_running || false;
-}
+};
 
 
 DebugCommandProcessor.prototype.processDebugRequest = function (request) {
   return this.processDebugJSONRequest(request);
-};
+}
 
 
 function ProtocolMessage(request) {
@@ -1303,13 +1297,13 @@ ProtocolMessage.prototype.setOption = function(name, value) {
     this.options_ = {};
   }
   this.options_[name] = value;
-};
+}
 
 
 ProtocolMessage.prototype.failed = function(message) {
   this.success = false;
   this.message = message;
-};
+}
 
 
 ProtocolMessage.prototype.toJSONProtocol = function() {
@@ -1357,7 +1351,7 @@ ProtocolMessage.prototype.toJSONProtocol = function() {
   }
   json.running = this.running;
   return JSON.stringify(json);
-};
+}
 
 
 DebugCommandProcessor.prototype.createResponse = function(request) {
@@ -1365,8 +1359,7 @@ DebugCommandProcessor.prototype.createResponse = function(request) {
 };
 
 
-DebugCommandProcessor.prototype.processDebugJSONRequest = function(
-    json_request) {
+DebugCommandProcessor.prototype.processDebugJSONRequest = function(json_request) {
   var request;  // Current request.
   var response;  // Generated response.
   try {
@@ -1548,7 +1541,7 @@ DebugCommandProcessor.prototype.continueRequest_ = function(request, response) {
       }
     }
 
-    // Set up the VM for stepping.
+    // Setup the VM for stepping.
     this.exec_state_.prepareStep(action, count);
   }
 
@@ -1653,7 +1646,7 @@ DebugCommandProcessor.prototype.setBreakPointRequest_ =
 
   // Add the break point number to the response.
   response.body = { type: type,
-                    breakpoint: break_point_number };
+                    breakpoint: break_point_number }
 
   // Add break point information to the response.
   if (break_point instanceof ScriptBreakPoint) {
@@ -1667,8 +1660,7 @@ DebugCommandProcessor.prototype.setBreakPointRequest_ =
       response.body.type = 'scriptRegExp';
       response.body.script_regexp = break_point.script_regexp_object().source;
     } else {
-      throw new Error("Internal error: Unexpected breakpoint type: " +
-                      break_point.type());
+      throw new Error("Internal error: Unexpected breakpoint type: " + break_point.type());
     }
     response.body.line = break_point.line();
     response.body.column = break_point.column();
@@ -1680,8 +1672,7 @@ DebugCommandProcessor.prototype.setBreakPointRequest_ =
 };
 
 
-DebugCommandProcessor.prototype.changeBreakPointRequest_ = function(
-    request, response) {
+DebugCommandProcessor.prototype.changeBreakPointRequest_ = function(request, response) {
   // Check for legal request.
   if (!request.arguments) {
     response.failed('Missing arguments');
@@ -1718,11 +1709,10 @@ DebugCommandProcessor.prototype.changeBreakPointRequest_ = function(
   if (!IS_UNDEFINED(ignoreCount)) {
     Debug.changeBreakPointIgnoreCount(break_point, ignoreCount);
   }
-};
+}
 
 
-DebugCommandProcessor.prototype.clearBreakPointGroupRequest_ = function(
-    request, response) {
+DebugCommandProcessor.prototype.clearBreakPointGroupRequest_ = function(request, response) {
   // Check for legal request.
   if (!request.arguments) {
     response.failed('Missing arguments');
@@ -1753,11 +1743,10 @@ DebugCommandProcessor.prototype.clearBreakPointGroupRequest_ = function(
 
   // Add the cleared break point numbers to the response.
   response.body = { breakpoints: cleared_break_points };
-};
+}
 
 
-DebugCommandProcessor.prototype.clearBreakPointRequest_ = function(
-    request, response) {
+DebugCommandProcessor.prototype.clearBreakPointRequest_ = function(request, response) {
   // Check for legal request.
   if (!request.arguments) {
     response.failed('Missing arguments');
@@ -1777,12 +1766,11 @@ DebugCommandProcessor.prototype.clearBreakPointRequest_ = function(
   Debug.clearBreakPoint(break_point);
 
   // Add the cleared break point number to the response.
-  response.body = { breakpoint: break_point };
-};
+  response.body = { breakpoint: break_point }
+}
 
 
-DebugCommandProcessor.prototype.listBreakpointsRequest_ = function(
-    request, response) {
+DebugCommandProcessor.prototype.listBreakpointsRequest_ = function(request, response) {
   var array = [];
   for (var i = 0; i < script_break_points.length; i++) {
     var break_point = script_break_points[i];
@@ -1797,7 +1785,7 @@ DebugCommandProcessor.prototype.listBreakpointsRequest_ = function(
       condition: break_point.condition(),
       ignoreCount: break_point.ignoreCount(),
       actual_locations: break_point.actual_locations()
-    };
+    }
 
     if (break_point.type() == Debug.ScriptBreakPointType.ScriptId) {
       description.type = 'scriptId';
@@ -1809,8 +1797,7 @@ DebugCommandProcessor.prototype.listBreakpointsRequest_ = function(
       description.type = 'scriptRegExp';
       description.script_regexp = break_point.script_regexp_object().source;
     } else {
-      throw new Error("Internal error: Unexpected breakpoint type: " +
-                      break_point.type());
+      throw new Error("Internal error: Unexpected breakpoint type: " + break_point.type());
     }
     array.push(description);
   }
@@ -1819,15 +1806,15 @@ DebugCommandProcessor.prototype.listBreakpointsRequest_ = function(
     breakpoints: array,
     breakOnExceptions: Debug.isBreakOnException(),
     breakOnUncaughtExceptions: Debug.isBreakOnUncaughtException()
-  };
-};
+  }
+}
 
 
 DebugCommandProcessor.prototype.disconnectRequest_ =
     function(request, response) {
   Debug.disableAllBreakPoints();
   this.continueRequest_(request, response);
-};
+}
 
 
 DebugCommandProcessor.prototype.setExceptionBreakRequest_ =
@@ -1872,11 +1859,10 @@ DebugCommandProcessor.prototype.setExceptionBreakRequest_ =
 
   // Add the cleared break point number to the response.
   response.body = { 'type': type, 'enabled': enabled };
-};
+}
 
 
-DebugCommandProcessor.prototype.backtraceRequest_ = function(
-    request, response) {
+DebugCommandProcessor.prototype.backtraceRequest_ = function(request, response) {
   // Get the number of frames.
   var total_frames = this.exec_state_.frameCount();
 
@@ -1884,12 +1870,12 @@ DebugCommandProcessor.prototype.backtraceRequest_ = function(
   if (total_frames == 0) {
     response.body = {
       totalFrames: total_frames
-    };
+    }
     return;
   }
 
   // Default frame range to include in backtrace.
-  var from_index = 0;
+  var from_index = 0
   var to_index = kDefaultBacktraceLength;
 
   // Get the range from the arguments.
@@ -1902,7 +1888,7 @@ DebugCommandProcessor.prototype.backtraceRequest_ = function(
     }
     if (request.arguments.bottom) {
       var tmp_index = total_frames - from_index;
-      from_index = total_frames - to_index;
+      from_index = total_frames - to_index
       to_index = tmp_index;
     }
     if (from_index < 0 || to_index < 0) {
@@ -1928,7 +1914,7 @@ DebugCommandProcessor.prototype.backtraceRequest_ = function(
     toFrame: to_index,
     totalFrames: total_frames,
     frames: frames
-  };
+  }
 };
 
 
@@ -1952,8 +1938,8 @@ DebugCommandProcessor.prototype.frameRequest_ = function(request, response) {
 
 
 DebugCommandProcessor.prototype.frameForScopeRequest_ = function(request) {
-  // Get the frame for which the scope or scopes are requested.
-  // With no frameNumber argument use the currently selected frame.
+  // Get the frame for which the scope or scopes are requested. With no frameNumber
+  // argument use the currently selected frame.
   if (request.arguments && !IS_UNDEFINED(request.arguments.frameNumber)) {
     frame_index = request.arguments.frameNumber;
     if (frame_index < 0 || this.exec_state_.frameCount() <= frame_index) {
@@ -1963,7 +1949,7 @@ DebugCommandProcessor.prototype.frameForScopeRequest_ = function(request) {
   } else {
     return this.exec_state_.frame();
   }
-};
+}
 
 
 DebugCommandProcessor.prototype.scopesRequest_ = function(request, response) {
@@ -1986,7 +1972,7 @@ DebugCommandProcessor.prototype.scopesRequest_ = function(request, response) {
     toScope: total_scopes,
     totalScopes: total_scopes,
     scopes: scopes
-  };
+  }
 };
 
 
@@ -2231,8 +2217,7 @@ DebugCommandProcessor.prototype.scriptsRequest_ = function(request, response) {
     if (!IS_UNDEFINED(request.arguments.types)) {
       types = %ToNumber(request.arguments.types);
       if (isNaN(types) || types < 0) {
-        return response.failed('Invalid types "' +
-                               request.arguments.types + '"');
+        return response.failed('Invalid types "' + request.arguments.types + '"');
       }
     }
 
@@ -2301,7 +2286,7 @@ DebugCommandProcessor.prototype.threadsRequest_ = function(request, response) {
     var details = %GetThreadDetails(this.exec_state_.break_id, i);
     var thread_info = { current: details[0],
                         id: details[1]
-                      };
+                      }
     threads.push(thread_info);
   }
 
@@ -2309,7 +2294,7 @@ DebugCommandProcessor.prototype.threadsRequest_ = function(request, response) {
   response.body = {
     totalThreads: total_threads,
     threads: threads
-  };
+  }
 };
 
 
@@ -2321,7 +2306,7 @@ DebugCommandProcessor.prototype.suspendRequest_ = function(request, response) {
 DebugCommandProcessor.prototype.versionRequest_ = function(request, response) {
   response.body = {
     V8Version: %GetV8Version()
-  };
+  }
 };
 
 
@@ -2337,8 +2322,7 @@ DebugCommandProcessor.prototype.profileRequest_ = function(request, response) {
 };
 
 
-DebugCommandProcessor.prototype.changeLiveRequest_ = function(
-    request, response) {
+DebugCommandProcessor.prototype.changeLiveRequest_ = function(request, response) {
   if (!Debug.LiveEdit) {
     return response.failed('LiveEdit feature is not supported');
   }
@@ -2409,7 +2393,7 @@ DebugCommandProcessor.prototype.debuggerFlagsRequest_ = function(request,
       response.body.flags.push({ name: name, value: value });
     }
   }
-};
+}
 
 
 DebugCommandProcessor.prototype.v8FlagsRequest_ = function(request, response) {
@@ -2515,7 +2499,7 @@ DebugCommandProcessor.prototype.lolPrintRequest_ = function(request, response) {
 // running.
 DebugCommandProcessor.prototype.isRunning = function() {
   return this.running_;
-};
+}
 
 
 DebugCommandProcessor.prototype.systemBreak = function(cmd, args) {
@@ -2531,7 +2515,7 @@ function NumberToHex8Str(n) {
     n = n >>> 4;
   }
   return r;
-}
+};
 
 
 /**
@@ -2607,7 +2591,7 @@ function ValueToProtocolValue_(value, mirror_serializer) {
     case 'string':
     case 'number':
       json = value;
-      break;
+      break
 
     default:
       json = null;