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, 2 insertions, 2 deletions

diff --git a/compiler/optimizing/parallel_move_test.cc b/compiler/optimizing/parallel_move_test.cc
index 2bdcc61..62629bc 100644
--- a/compiler/optimizing/parallel_move_test.cc
+++ b/compiler/optimizing/parallel_move_test.cc
@@ -50,8 +50,8 @@ class TestParallelMoveResolver : public ParallelMoveResolver {
              << ")";
   }
 
-  virtual void SpillScratch(int reg) {}
-  virtual void RestoreScratch(int reg) {}
+  virtual void SpillScratch(int reg ATTRIBUTE_UNUSED) {}
+  virtual void RestoreScratch(int reg ATTRIBUTE_UNUSED) {}
 
   std::string GetMessage() const {
     return  message_.str();