Fix Object.prototype.toString.call(proxy)

src/full-codegen/mips/full-codegen-mips.cc

 // Copyright 2012 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_MIPS
 
 // Note on Mips implementation:
 //
 // The result_register() for mips is the 'v0' register, which is defined
 // by the ABI to contain function return values. However, the first
@@ skipping 3314 matching lines @@
   __ JumpIfSmi(v0, &null);
 
   // Check that the object is a JS object but take special care of JS
   // functions to make sure they have 'Function' as their class.
   // Assume that there are only two callable types, and one of them is at
   // either end of the type range for JS object types. Saves extra comparisons.
   STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2);
   __ GetObjectType(v0, v0, a1);  // Map is now in v0.
   __ Branch(&null, lt, a1, Operand(FIRST_JS_RECEIVER_TYPE));
 
-  STATIC_ASSERT(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE ==
-                FIRST_JS_RECEIVER_TYPE + 1);
-  __ Branch(&function, eq, a1, Operand(FIRST_JS_RECEIVER_TYPE));
-
   STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE ==
                 LAST_JS_RECEIVER_TYPE - 1);
   __ Branch(&function, eq, a1, Operand(LAST_JS_RECEIVER_TYPE));
   // Assume that there is no larger type.
   STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == LAST_TYPE - 1);
 
   // Check if the constructor in the map is a JS function.
   Register instance_type = a2;
   __ GetMapConstructor(v0, v0, a1, instance_type);
   __ Branch(&non_function_constructor, ne, instance_type,
@@ skipping 1564 matching lines @@
          reinterpret_cast<uint32_t>(
              isolate->builtins()->OsrAfterStackCheck()->entry()));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS