Fix ARM external array crankshaft bailout

src/arm/lithium-arm.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1809 matching lines @@
   LLoadKeyedFastElement* result = new LLoadKeyedFastElement(obj, key);
   return AssignEnvironment(DefineSameAsFirst(result));
 }
 
 
 LInstruction* LChunkBuilder::DoLoadKeyedSpecializedArrayElement(
     HLoadKeyedSpecializedArrayElement* instr) {
   // TODO(danno): Add support for other external array types.
   if (instr->array_type() != kExternalPixelArray) {
     Abort("unsupported load for external array type.");
+    return NULL;
   }
 
   ASSERT(instr->representation().IsInteger32());
   ASSERT(instr->key()->representation().IsInteger32());
   LOperand* external_pointer =
       UseRegisterAtStart(instr->external_pointer());
   LOperand* key = UseRegisterAtStart(instr->key());
   LLoadKeyedSpecializedArrayElement* result =
       new LLoadKeyedSpecializedArrayElement(external_pointer,
                                             key);
@@ skipping 28 matching lines @@
 
   return AssignEnvironment(new LStoreKeyedFastElement(obj, key, val));
 }
 
 
 LInstruction* LChunkBuilder::DoStoreKeyedSpecializedArrayElement(
     HStoreKeyedSpecializedArrayElement* instr) {
   // TODO(danno): Add support for other external array types.
   if (instr->array_type() != kExternalPixelArray) {
     Abort("unsupported store for external array type.");
+    return NULL;
   }
 
   ASSERT(instr->value()->representation().IsInteger32());
   ASSERT(instr->external_pointer()->representation().IsExternal());
   ASSERT(instr->key()->representation().IsInteger32());
 
   LOperand* external_pointer = UseRegister(instr->external_pointer());
   LOperand* value = UseTempRegister(instr->value());  // changed by clamp.
   LOperand* key = UseRegister(instr->key());
 
@@ skipping 207 matching lines @@
 
 
 LInstruction* LChunkBuilder::DoLeaveInlined(HLeaveInlined* instr) {
   HEnvironment* outer = current_block_->last_environment()->outer();
   current_block_->UpdateEnvironment(outer);
   return NULL;
 }
 
 
 } }  // namespace v8::internal