[runtime] [proxy] removing JSFunctionProxy and related code.

src/compiler/js-generic-lowering.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/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/js-generic-lowering.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/machine-operator.h"
@@ skipping 716 matching lines @@
   Node* cache_length_false0;
   Node* cache_type_false0;
   Node* efalse0;
   {
     // FixedArray case.
     Node* object_instance_type = efalse0 = graph()->NewNode(
         machine()->Load(kMachUint8), object_map,
         jsgraph()->IntPtrConstant(Map::kInstanceTypeOffset - kHeapObjectTag),
         effect, if_false0);
 
-    STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_JS_RECEIVER_TYPE);
-    Node* check1 = graph()->NewNode(
-        machine()->Uint32LessThanOrEqual(), object_instance_type,
-        jsgraph()->Uint32Constant(LAST_JS_PROXY_TYPE));
+    Node* check1 =
+        graph()->NewNode(machine()->Word32Equal(), object_instance_type,
+                         jsgraph()->Uint32Constant(JS_PROXY_TYPE));
     Node* branch1 = graph()->NewNode(common()->Branch(BranchHint::kFalse),
                                      check1, if_false0);
 
     Node* if_true1 = graph()->NewNode(common()->IfTrue(), branch1);
     Node* cache_type_true1 = jsgraph()->ZeroConstant();  // Zero indicates proxy
 
     Node* if_false1 = graph()->NewNode(common()->IfFalse(), branch1);
     Node* cache_type_false1 = jsgraph()->OneConstant();  // One means slow check
 
     if_false0 = graph()->NewNode(common()->Merge(2), if_true1, if_false1);
@@ skipping 142 matching lines @@
 }
 
 
 MachineOperatorBuilder* JSGenericLowering::machine() const {
   return jsgraph()->machine();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8