Use 'final' and 'override' specifiers directly in ART.

Remove all uses of macros 'FINAL' and 'OVERRIDE' and replace them with
'final' and 'override' specifiers. Remove all definitions of these
macros as well, which were located in these files:
- libartbase/base/macros.h
- test/913-heaps/heaps.cc
- test/ti-agent/ti_macros.h

ART is now using C++14; the 'final' and 'override' specifiers have
been introduced in C++11.

Test: mmma art
Change-Id: I256c7758155a71a2940ef2574925a44076feeebf
diff --git a/compiler/optimizing/intrinsics_arm_vixl.h b/compiler/optimizing/intrinsics_arm_vixl.h
index 9c02d0a..1fea776 100644
--- a/compiler/optimizing/intrinsics_arm_vixl.h
+++ b/compiler/optimizing/intrinsics_arm_vixl.h
@@ -27,14 +27,14 @@
 class ArmVIXLAssembler;
 class CodeGeneratorARMVIXL;
 
-class IntrinsicLocationsBuilderARMVIXL FINAL : public IntrinsicVisitor {
+class IntrinsicLocationsBuilderARMVIXL final : public IntrinsicVisitor {
  public:
   explicit IntrinsicLocationsBuilderARMVIXL(CodeGeneratorARMVIXL* codegen);
 
   // Define visitor methods.
 
 #define OPTIMIZING_INTRINSICS(Name, IsStatic, NeedsEnvironmentOrCache, SideEffects, Exceptions, ...) \
-  void Visit ## Name(HInvoke* invoke) OVERRIDE;
+  void Visit ## Name(HInvoke* invoke) override;
 #include "intrinsics_list.h"
   INTRINSICS_LIST(OPTIMIZING_INTRINSICS)
 #undef INTRINSICS_LIST
@@ -54,14 +54,14 @@
   DISALLOW_COPY_AND_ASSIGN(IntrinsicLocationsBuilderARMVIXL);
 };
 
-class IntrinsicCodeGeneratorARMVIXL FINAL : public IntrinsicVisitor {
+class IntrinsicCodeGeneratorARMVIXL final : public IntrinsicVisitor {
  public:
   explicit IntrinsicCodeGeneratorARMVIXL(CodeGeneratorARMVIXL* codegen) : codegen_(codegen) {}
 
   // Define visitor methods.
 
 #define OPTIMIZING_INTRINSICS(Name, IsStatic, NeedsEnvironmentOrCache, SideEffects, Exceptions, ...) \
-  void Visit ## Name(HInvoke* invoke) OVERRIDE;
+  void Visit ## Name(HInvoke* invoke) override;
 #include "intrinsics_list.h"
   INTRINSICS_LIST(OPTIMIZING_INTRINSICS)
 #undef INTRINSICS_LIST