Get rid of the unused native code StringAddStub.

src/code-stubs.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 27 matching lines @@
 namespace internal {
 
 // List of code stubs used on all platforms.
 #define CODE_STUB_LIST_ALL_PLATFORMS(V)  \
   V(CallFunction)                        \
   V(CallConstruct)                       \
   V(BinaryOpIC)                          \
   V(BinaryOpICWithAllocationSite)        \
   V(BinaryOpWithAllocationSite)          \
   V(StringAdd)                           \
-  V(NewStringAdd)                        \
   V(SubString)                           \
   V(StringCompare)                       \
   V(Compare)                             \
   V(CompareIC)                           \
   V(CompareNilIC)                        \
   V(MathPow)                             \
   V(StringLength)                        \
   V(FunctionPrototype)                   \
   V(StoreArrayLength)                    \
   V(RecordWrite)                         \
@@ skipping 381 matching lines @@
   virtual void AfterCall(MacroAssembler* masm) const = 0;
 
  protected:
   RuntimeCallHelper() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(RuntimeCallHelper);
 };
 
 
-// TODO(bmeurer): Move to the StringAddStub declaration once we're
-// done with the translation to a hydrogen code stub.
-enum StringAddFlags {
-  // Omit both parameter checks.
-  STRING_ADD_CHECK_NONE = 0,
-  // Check left parameter.
-  STRING_ADD_CHECK_LEFT = 1 << 0,
-  // Check right parameter.
-  STRING_ADD_CHECK_RIGHT = 1 << 1,
-  // Check both parameters.
-  STRING_ADD_CHECK_BOTH = STRING_ADD_CHECK_LEFT | STRING_ADD_CHECK_RIGHT
-};
-
 } }  // namespace v8::internal
 
 #if V8_TARGET_ARCH_IA32
 #include "ia32/code-stubs-ia32.h"
 #elif V8_TARGET_ARCH_X64
 #include "x64/code-stubs-x64.h"
 #elif V8_TARGET_ARCH_ARM
 #include "arm/code-stubs-arm.h"
 #elif V8_TARGET_ARCH_MIPS
 #include "mips/code-stubs-mips.h"
@@ skipping 776 matching lines @@
     return BinaryOpWithAllocationSite;
   }
 
   // Parameters accessed via CodeStubGraphBuilder::GetParameter()
   static const int kAllocationSite = 0;
   static const int kLeft = 1;
   static const int kRight = 2;
 };
 
 
-// TODO(bmeurer): Rename to StringAddStub once we dropped the old StringAddStub.
-class NewStringAddStub V8_FINAL : public HydrogenCodeStub {
+enum StringAddFlags {
+  // Omit both parameter checks.
+  STRING_ADD_CHECK_NONE = 0,
+  // Check left parameter.
+  STRING_ADD_CHECK_LEFT = 1 << 0,
+  // Check right parameter.
+  STRING_ADD_CHECK_RIGHT = 1 << 1,
+  // Check both parameters.
+  STRING_ADD_CHECK_BOTH = STRING_ADD_CHECK_LEFT | STRING_ADD_CHECK_RIGHT
+};
+
+
+class StringAddStub V8_FINAL : public HydrogenCodeStub {
  public:
-  NewStringAddStub(StringAddFlags flags, PretenureFlag pretenure_flag)
+  StringAddStub(StringAddFlags flags, PretenureFlag pretenure_flag)
       : bit_field_(StringAddFlagsBits::encode(flags) |
                    PretenureFlagBits::encode(pretenure_flag)) {}
 
   StringAddFlags flags() const {
     return StringAddFlagsBits::decode(bit_field_);
   }
 
   PretenureFlag pretenure_flag() const {
     return PretenureFlagBits::decode(bit_field_);
   }
@@ skipping 12 matching lines @@
 
   // Parameters accessed via CodeStubGraphBuilder::GetParameter()
   static const int kLeft = 0;
   static const int kRight = 1;
 
  private:
   class StringAddFlagsBits: public BitField<StringAddFlags, 0, 2> {};
   class PretenureFlagBits: public BitField<PretenureFlag, 2, 1> {};
   uint32_t bit_field_;
 
-  virtual Major MajorKey() V8_OVERRIDE { return NewStringAdd; }
+  virtual Major MajorKey() V8_OVERRIDE { return StringAdd; }
   virtual int NotMissMinorKey() V8_OVERRIDE { return bit_field_; }
 
   virtual void PrintBaseName(StringStream* stream) V8_OVERRIDE;
 
-  DISALLOW_COPY_AND_ASSIGN(NewStringAddStub);
+  DISALLOW_COPY_AND_ASSIGN(StringAddStub);
 };
 
 
 class ICCompareStub: public PlatformCodeStub {
  public:
   ICCompareStub(Token::Value op,
                 CompareIC::State left,
                 CompareIC::State right,
                 CompareIC::State handler)
       : op_(op),
@@ skipping 1180 matching lines @@
 
 
 class CallDescriptors {
  public:
   static void InitializeForIsolate(Isolate* isolate);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_