Remove receiver conversion from function prologue

src/compiler.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.
 
 #include "src/compiler.h"
 
 #include <algorithm>
 
 #include "src/ast-numbering.h"
 #include "src/bootstrapper.h"
@@ skipping 310 matching lines @@
     return parse_info()->literal()->debug_name()->ToCString();
   }
   const char* str = debug_name_ ? debug_name_ : "unknown";
   size_t len = strlen(str) + 1;
   base::SmartArrayPointer<char> name(new char[len]);
   memcpy(name.get(), str, len);
   return name;
 }
 
 
-bool CompilationInfo::MustReplaceUndefinedReceiverWithGlobalProxy() {
-  return is_sloppy(language_mode()) && !is_native() &&
-         scope()->has_this_declaration() && scope()->receiver()->is_used();
+bool CompilationInfo::ExpectsJSReceiverAsReceiver() {
+  return is_sloppy(language_mode()) && !is_native();
 }
 
 
 class HOptimizedGraphBuilderWithPositions: public HOptimizedGraphBuilder {
  public:
   explicit HOptimizedGraphBuilderWithPositions(CompilationInfo* info)
       : HOptimizedGraphBuilder(info) {
   }
 
 #define DEF_VISIT(type)                                      \
@@ skipping 1450 matching lines @@
 }
 
 #if DEBUG
 void CompilationInfo::PrintAstForTesting() {
   PrintF("--- Source from AST ---\n%s\n",
          PrettyPrinter(isolate()).PrintProgram(literal()));
 }
 #endif
 }  // namespace internal
 }  // namespace v8