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, 2 deletions

diff --git a/compiler/llvm/llvm_compiler.cc b/compiler/llvm/llvm_compiler.cc
index 55af6145be..fa93e00e19 100644
--- a/compiler/llvm/llvm_compiler.cc
+++ b/compiler/llvm/llvm_compiler.cc
@@ -16,6 +16,7 @@
 
 #include "llvm_compiler.h"
 
+#include "base/macros.h"
 #ifdef ART_USE_PORTABLE_COMPILER
 #include "compiler.h"
 #include "compiler_llvm.h"
@@ -152,9 +153,10 @@ class LLVMCompiler FINAL : public Compiler {
 
 Compiler* CreateLLVMCompiler(CompilerDriver* driver) {
 #ifdef ART_USE_PORTABLE_COMPILER
-      return new llvm::LLVMCompiler(driver);
+  return new llvm::LLVMCompiler(driver);
 #else
-      return nullptr;
+  UNUSED(driver);
+  return nullptr;
 #endif
 }