[stubs] Introduce ToIntegerStub and unify the handling of %_ToInteger.

src/full-codegen/full-codegen.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/full-codegen/full-codegen.h"
 
 #include "src/ast/ast-numbering.h"
 #include "src/ast/ast.h"
 #include "src/ast/prettyprinter.h"
 #include "src/ast/scopeinfo.h"
@@ skipping 570 matching lines @@
 
 void FullCodeGenerator::EmitToName(CallRuntime* expr) {
   EmitIntrinsicAsStubCall(expr, CodeFactory::ToName(isolate()));
 }
 
 
 void FullCodeGenerator::EmitToLength(CallRuntime* expr) {
   EmitIntrinsicAsStubCall(expr, CodeFactory::ToLength(isolate()));
 }
 
+void FullCodeGenerator::EmitToInteger(CallRuntime* expr) {
+  EmitIntrinsicAsStubCall(expr, CodeFactory::ToInteger(isolate()));
+}
 
 void FullCodeGenerator::EmitToNumber(CallRuntime* expr) {
   EmitIntrinsicAsStubCall(expr, CodeFactory::ToNumber(isolate()));
 }
 
 
 void FullCodeGenerator::EmitToObject(CallRuntime* expr) {
   EmitIntrinsicAsStubCall(expr, CodeFactory::ToObject(isolate()));
 }
 
@@ skipping 1348 matching lines @@
   return var->mode() == CONST_LEGACY || var->scope()->is_nonlinear() ||
          var->initializer_position() >= proxy->position();
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8