Remove -Wno-unused-parameter and -Wno-sign-promo from base cflags.

Fix associated errors about unused paramenters and implict sign conversions.
For sign conversion this was largely in the area of enums, so add ostream
operators for the effected enums and fix tools/generate-operator-out.py.
Tidy arena allocation code and arena allocated data types, rather than fixing
new and delete operators.
Remove dead code.

Change-Id: I5b433e722d2f75baacfacae4d32aef4a828bfe1b

1 files changed, 5 insertions, 4 deletions

diff --git a/compiler/dex/quick/ralloc_util.cc b/compiler/dex/quick/ralloc_util.cc
index 6305b22ded..0a98c800a8 100644
--- a/compiler/dex/quick/ralloc_util.cc
+++ b/compiler/dex/quick/ralloc_util.cc
@@ -316,16 +316,16 @@ RegStorage Mir2Lir::AllocPreservedFpReg(int s_reg) {
 
 // TODO: this is Thumb2 only.  Remove when DoPromotion refactored.
 RegStorage Mir2Lir::AllocPreservedDouble(int s_reg) {
-  RegStorage res;
+  UNUSED(s_reg);
   UNIMPLEMENTED(FATAL) << "Unexpected use of AllocPreservedDouble";
-  return res;
+  UNREACHABLE();
 }
 
 // TODO: this is Thumb2 only.  Remove when DoPromotion refactored.
 RegStorage Mir2Lir::AllocPreservedSingle(int s_reg) {
-  RegStorage res;
+  UNUSED(s_reg);
   UNIMPLEMENTED(FATAL) << "Unexpected use of AllocPreservedSingle";
-  return res;
+  UNREACHABLE();
 }
 
 
@@ -1392,6 +1392,7 @@ int Mir2Lir::GetSRegHi(int lowSreg) {
 }
 
 bool Mir2Lir::LiveOut(int s_reg) {
+  UNUSED(s_reg);
   // For now.
   return true;
 }