new classes: assert that constructors are not callable and rewrite 'return;'

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/linkage.h"
 #include "src/compiler/node.h"
 #include "src/compiler/pipeline.h"
 #include "src/scopes.h"
@@ skipping 195 matching lines @@
     case Runtime::kStoreKeyedToSuper_Sloppy:
     case Runtime::kStoreKeyedToSuper_Strict:
     case Runtime::kStoreToSuper_Sloppy:
     case Runtime::kStoreToSuper_Strict:
     case Runtime::kStoreLookupSlot:
     case Runtime::kStringBuilderConcat:
     case Runtime::kStringBuilderJoin:
     case Runtime::kStringMatch:
     case Runtime::kStringReplaceGlobalRegExpWithString:
     case Runtime::kThrowConstAssignError:
+    case Runtime::kThrowConstructorNonCallableError:
     case Runtime::kThrowNonMethodError:
     case Runtime::kThrowNotDateError:
     case Runtime::kThrowReferenceError:
     case Runtime::kThrowUnsupportedSuperError:
     case Runtime::kThrow:
     case Runtime::kTypedArraySetFastCases:
     case Runtime::kTypedArrayInitializeFromArrayLike:
 #ifdef V8_I18N_SUPPORT
     case Runtime::kGetImplFromInitializedIntlObject:
 #endif
@@ skipping 41 matching lines @@
 
 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
                                                   MachineSignature* sig) {
   UNIMPLEMENTED();
   return NULL;
 }
 #endif  // !V8_TURBOFAN_BACKEND
 }
 }
 }  // namespace v8::internal::compiler