[es6] Introduce %ToInteger and %ToLength.

src/compiler/linkage.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-stubs.h"
 #include "src/compiler.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/frame.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/node.h"
@@ skipping 228 matching lines @@
       return 0;
     case Runtime::kInlineArguments:
     case Runtime::kInlineArgumentsLength:
     case Runtime::kInlineCall:
     case Runtime::kInlineCallFunction:
     case Runtime::kInlineDefaultConstructorCallSuper:
     case Runtime::kInlineGetCallerJSFunction:
     case Runtime::kInlineGetPrototype:
     case Runtime::kInlineRegExpExec:
     case Runtime::kInlineSubString:
+    case Runtime::kInlineToInteger:
+    case Runtime::kInlineToLength:
     case Runtime::kInlineToName:
     case Runtime::kInlineToNumber:
     case Runtime::kInlineToObject:
     case Runtime::kInlineToPrimitive_Number:
     case Runtime::kInlineToPrimitive_String:
     case Runtime::kInlineToPrimitive:
     case Runtime::kInlineToString:
       return 1;
     case Runtime::kInlineDeoptimizeNow:
     case Runtime::kInlineThrowNotDateError:
@@ skipping 264 matching lines @@
     return LinkageLocation::ForCalleeFrameSlot(spill_index);
   } else {
     // Parameter. Use the assigned location from the incoming call descriptor.
     int parameter_index = 1 + index;  // skip index 0, which is the target.
     return incoming_->GetInputLocation(parameter_index);
   }
 }
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8