[generators] Always call function with closure context when resuming.

src/builtins/mips64/builtins-mips64.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_MIPS64
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 722 matching lines @@
 
   // Store input value into generator object.
   __ sd(v0, FieldMemOperand(a1, JSGeneratorObject::kInputOrDebugPosOffset));
   __ RecordWriteField(a1, JSGeneratorObject::kInputOrDebugPosOffset, v0, a3,
                       kRAHasNotBeenSaved, kDontSaveFPRegs);
 
   // Store resume mode into generator object.
   __ sd(a2, FieldMemOperand(a1, JSGeneratorObject::kResumeModeOffset));
 
   // Load suspended function and context.
-  __ ld(cp, FieldMemOperand(a1, JSGeneratorObject::kContextOffset));
   __ ld(a4, FieldMemOperand(a1, JSGeneratorObject::kFunctionOffset));
+  __ ld(cp, FieldMemOperand(a4, JSFunction::kContextOffset));
 
   // Flood function if we are stepping.
   Label prepare_step_in_if_stepping, prepare_step_in_suspended_generator;
   Label stepping_prepared;
   ExternalReference debug_hook =
       ExternalReference::debug_hook_on_function_call_address(masm->isolate());
   __ li(a5, Operand(debug_hook));
   __ lb(a5, MemOperand(a5));
   __ Branch(&prepare_step_in_if_stepping, ne, a5, Operand(zero_reg));
 
@@ skipping 2233 matching lines @@
     __ break_(0xCC);
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64