Fix megamorphic load regression on ARM caused by the string

length/hash change.
Review URL: http://codereview.chromium.org/454018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3388 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/ic-arm.cc

@@ -115,7 +115,7 @@ static void GenerateDictionaryLoad(MacroAssembler* masm,
       ASSERT(StringDictionary::GetProbeOffset(i) <
              1 << (32 - String::kHashFieldOffset));
       __ add(t1, t1, Operand(
-          StringDictionary::GetProbeOffset(i) << String::kHashFieldOffset));
+          StringDictionary::GetProbeOffset(i) << String::kHashShift));
     }
     __ and_(t1, r3, Operand(t1, LSR, String::kHashShift));
 

src/arm/stub-cache-arm.cc

@@ -105,7 +105,7 @@ void StubCache::GenerateProbe(MacroAssembler* masm,
   __ b(eq, &miss);
 
   // Get the map of the receiver and compute the hash.
-  __ ldr(scratch, FieldMemOperand(name, String::kLengthOffset));
+  __ ldr(scratch, FieldMemOperand(name, String::kHashFieldOffset));
   __ ldr(ip, FieldMemOperand(receiver, HeapObject::kMapOffset));
   __ add(scratch, scratch, Operand(ip));
   __ eor(scratch, scratch, Operand(flags));