Implement set trap for proxies, and revamp class hierarchy in preparation

src/arm/stub-cache-arm.cc

 // Copyright 2011 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 103 matching lines @@
 
   // Bail out if the receiver has a named interceptor or requires access checks.
   Register map = scratch1;
   __ ldr(map, FieldMemOperand(receiver, HeapObject::kMapOffset));
   __ ldrb(scratch0, FieldMemOperand(map, Map::kBitFieldOffset));
   __ tst(scratch0, Operand(kInterceptorOrAccessCheckNeededMask));
   __ b(ne, miss_label);
 
   // Check that receiver is a JSObject.
   __ ldrb(scratch0, FieldMemOperand(map, Map::kInstanceTypeOffset));
-  __ cmp(scratch0, Operand(FIRST_JS_OBJECT_TYPE));
+  __ cmp(scratch0, Operand(FIRST_SPEC_OBJECT_TYPE));
   __ b(lt, miss_label);
 
   // Load properties array.
   Register properties = scratch0;
   __ ldr(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
   // Check that the properties array is a dictionary.
   __ ldr(map, FieldMemOperand(properties, HeapObject::kMapOffset));
   Register tmp = properties;
   __ LoadRoot(tmp, Heap::kHashTableMapRootIndex);
   __ cmp(map, tmp);
@@ skipping 4098 matching lines @@
       masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric();
   __ Jump(ic, RelocInfo::CODE_TARGET);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM