[arm64] Fix a string test in StringCompareStub.

src/arm64/macro-assembler-arm64.cc

 // Copyright 2013 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.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 2406 matching lines @@
   JumpIfEitherInstanceTypeIsNotSequentialOneByte(scratch1, scratch2, scratch1,
                                                  scratch2, failure);
 }
 
 
 void MacroAssembler::JumpIfEitherInstanceTypeIsNotSequentialOneByte(
     Register first, Register second, Register scratch1, Register scratch2,
     Label* failure) {
   DCHECK(!AreAliased(scratch1, second));
   DCHECK(!AreAliased(scratch1, scratch2));
-  static const int kFlatOneByteStringMask =
+  const int kFlatOneByteStringMask =
       kIsNotStringMask | kStringEncodingMask | kStringRepresentationMask;
-  static const int kFlatOneByteStringTag = ONE_BYTE_STRING_TYPE;
+  const int kFlatOneByteStringTag =

[jbramley, 2015/10/12 14:16:18]

Note that I removed `static` only for consistency with surrounding functions and
the other back-ends.

+      kStringTag | kOneByteStringTag | kSeqStringTag;
   And(scratch1, first, kFlatOneByteStringMask);
   And(scratch2, second, kFlatOneByteStringMask);
   Cmp(scratch1, kFlatOneByteStringTag);
   Ccmp(scratch2, kFlatOneByteStringTag, NoFlag, eq);
   B(ne, failure);
 }
 
 
 void MacroAssembler::JumpIfInstanceTypeIsNotSequentialOneByte(Register type,
                                                               Register scratch,
@@ skipping 2624 matching lines @@
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64