The Array function must be looked up in the native context.

src/mips/macro-assembler-mips.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 4424 matching lines @@
   lw(function,
      MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
   // Load the native context from the global or builtins object.
   lw(function, FieldMemOperand(function,
                                GlobalObject::kNativeContextOffset));
   // Load the function from the native context.
   lw(function, MemOperand(function, Context::SlotOffset(index)));
 }
 
 
-void MacroAssembler::LoadArrayFunction(Register function) {
-  // Load the global or builtins object from the current context.
-  lw(function,
-     MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
-  // Load the global context from the global or builtins object.
-  lw(function,
-     FieldMemOperand(function, GlobalObject::kGlobalContextOffset));
-  // Load the array function from the native context.
-  lw(function,
-     MemOperand(function, Context::SlotOffset(Context::ARRAY_FUNCTION_INDEX)));
-}
-
-
 void MacroAssembler::LoadGlobalFunctionInitialMap(Register function,
                                                   Register map,
                                                   Register scratch) {
   // Load the initial map. The global functions all have initial maps.
   lw(map, FieldMemOperand(function, JSFunction::kPrototypeOrInitialMapOffset));
   if (emit_debug_code()) {
     Label ok, fail;
     CheckMap(map, scratch, Heap::kMetaMapRootIndex, &fail, DO_SMI_CHECK);
     Branch(&ok);
     bind(&fail);
@@ skipping 1247 matching lines @@
        opcode == BGTZL);
   opcode = (cond == eq) ? BEQ : BNE;
   instr = (instr & ~kOpcodeMask) | opcode;
   masm_.emit(instr);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS