PPC: [builtins] Simplify String constructor code.

src/ppc/macro-assembler-ppc.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_PPC_MACRO_ASSEMBLER_PPC_H_
 #define V8_PPC_MACRO_ASSEMBLER_PPC_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/frames.h"
@@ skipping 1308 matching lines @@
 
   // ---------------------------------------------------------------------------
   // HeapNumber utilities
 
   void JumpIfNotHeapNumber(Register object, Register heap_number_map,
                            Register scratch, Label* on_not_heap_number);
 
   // ---------------------------------------------------------------------------
   // String utilities
 
-  // Generate code to do a lookup in the number string cache. If the number in
-  // the register object is found in the cache the generated code falls through
-  // with the result in the result register. The object and the result register
-  // can be the same. If the number is not found in the cache the code jumps to
-  // the label not_found with only the content of register object unchanged.
-  void LookupNumberStringCache(Register object, Register result,
-                               Register scratch1, Register scratch2,
-                               Register scratch3, Label* not_found);
-
   // Checks if both objects are sequential one-byte strings and jumps to label
   // if either is not. Assumes that neither object is a smi.
   void JumpIfNonSmisNotBothSequentialOneByteStrings(Register object1,
                                                     Register object2,
                                                     Register scratch1,
                                                     Register scratch2,
                                                     Label* failure);
 
   // Checks if both objects are sequential one-byte strings and jumps to label
   // if either is not.
@@ skipping 222 matching lines @@
 #define ACCESS_MASM(masm)    \
   masm->stop(__FILE_LINE__); \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 }
 }  // namespace v8::internal
 
 #endif  // V8_PPC_MACRO_ASSEMBLER_PPC_H_