[turbofan]: Add a context relaxer reducer

src/compiler/js-inlining.cc

 // Copyright 2014 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.
 
 #include "src/compiler/js-inlining.h"
 
 #include "src/ast.h"
 #include "src/ast-numbering.h"
 #include "src/compiler/all-nodes.h"
 #include "src/compiler/ast-graph-builder.h"
@@ skipping 196 matching lines @@
   return Changed(value_output);
 }
 
 
 Node* JSInliner::CreateArgumentsAdaptorFrameState(
     JSCallFunctionAccessor* call, Handle<SharedFunctionInfo> shared_info,
     Zone* temp_zone) {
   const FrameStateFunctionInfo* state_info =
       jsgraph_->common()->CreateFrameStateFunctionInfo(
           FrameStateType::kArgumentsAdaptor,
-          static_cast<int>(call->formal_arguments()) + 1, 0, shared_info);
+          static_cast<int>(call->formal_arguments()) + 1, 0, shared_info,
+          CALL_MAINTAINS_NATIVE_CONTEXT);
 
   const Operator* op = jsgraph_->common()->FrameState(
       BailoutId(-1), OutputFrameStateCombine::Ignore(), state_info);
   const Operator* op0 = jsgraph_->common()->StateValues(0);
   Node* node0 = jsgraph_->graph()->NewNode(op0);
   NodeVector params(temp_zone);
   params.push_back(call->receiver());
   for (size_t argument = 0; argument != call->formal_arguments(); ++argument) {
     params.push_back(call->formal_argument(argument));
   }
@@ skipping 108 matching lines @@
 
   // Remember that we inlined this function.
   info_->AddInlinedFunction(info.shared_info());
 
   return InlineCall(node, context, frame_state, start, end);
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8