Introduce ENABLE_LATIN_1 compile flag

src/ia32/code-stubs-ia32.cc

 // 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 5454 matching lines @@
 }
 
 
 // -------------------------------------------------------------------------
 // StringCharFromCodeGenerator
 
 void StringCharFromCodeGenerator::GenerateFast(MacroAssembler* masm) {
   // Fast case of Heap::LookupSingleCharacterStringFromCode.
   STATIC_ASSERT(kSmiTag == 0);
   STATIC_ASSERT(kSmiShiftSize == 0);
-  ASSERT(IsPowerOf2(String::kMaxAsciiCharCode + 1));
+  ASSERT(IsPowerOf2(String::kMaxOneByteCharCode + 1));
   __ test(code_,
           Immediate(kSmiTagMask |
-                    ((~String::kMaxAsciiCharCode) << kSmiTagSize)));
+                    ((~String::kMaxOneByteCharCode) << kSmiTagSize)));
   __ j(not_zero, &slow_case_);
 
   Factory* factory = masm->isolate()->factory();
   __ Set(result_, Immediate(factory->single_character_string_cache()));
   STATIC_ASSERT(kSmiTag == 0);
   STATIC_ASSERT(kSmiTagSize == 1);
   STATIC_ASSERT(kSmiShiftSize == 0);
   // At this point code register contains smi tagged ASCII char code.
   __ mov(result_, FieldOperand(result_,
                                code_, times_half_pointer_size,
@@ skipping 1987 matching lines @@
   // Restore ecx.
   __ pop(ecx);
   __ ret(0);
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32