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, 12 insertions, 0 deletions

diff --git a/compiler/optimizing/nodes.cc b/compiler/optimizing/nodes.cc
index d624ad5e5e..8cb2ef6de8 100644
--- a/compiler/optimizing/nodes.cc
+++ b/compiler/optimizing/nodes.cc
@@ -647,4 +647,16 @@ bool HInstruction::Equals(HInstruction* other) const {
   return true;
 }
 
+std::ostream& operator<<(std::ostream& os, const HInstruction::InstructionKind& rhs) {
+#define DECLARE_CASE(type, super) case HInstruction::k##type: os << #type; break;
+  switch (rhs) {
+    FOR_EACH_INSTRUCTION(DECLARE_CASE)
+    default:
+      os << "Unknown instruction kind " << static_cast<int>(rhs);
+      break;
+  }
+#undef DECLARE_CASE
+  return os;
+}
+
 }  // namespace art