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, 4 insertions, 0 deletions

diff --git a/compiler/optimizing/code_generator_arm64.h b/compiler/optimizing/code_generator_arm64.h
index a4003ffea5..5530f46065 100644
--- a/compiler/optimizing/code_generator_arm64.h
+++ b/compiler/optimizing/code_generator_arm64.h
@@ -180,11 +180,15 @@ class CodeGeneratorARM64 : public CodeGenerator {
   virtual Location GetStackLocation(HLoadLocal* load) const OVERRIDE;
 
   virtual size_t SaveCoreRegister(size_t stack_index, uint32_t reg_id) OVERRIDE {
+    UNUSED(stack_index);
+    UNUSED(reg_id);
     UNIMPLEMENTED(INFO) << "TODO: SaveCoreRegister";
     return 0;
   }
 
   virtual size_t RestoreCoreRegister(size_t stack_index, uint32_t reg_id) OVERRIDE {
+    UNUSED(stack_index);
+    UNUSED(reg_id);
     UNIMPLEMENTED(INFO) << "TODO: RestoreCoreRegister";
     return 0;
   }