[interpreter] Switch passing of new.target to register.

test/cctest/interpreter/test-bytecode-generator.cc

 // Copyright 2015 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.
 
 // TODO(rmcilroy): Remove this define after this flag is turned on globally
 #define V8_IMMINENT_DEPRECATION_WARNINGS
 
 #include "src/v8.h"
 
 #include "src/compiler.h"
@@ skipping 5168 matching lines @@
         helper.MakeBytecodeForFunction(snippets[i].code_snippet);
     CheckBytecodeArrayEqual(snippets[i], bytecode_array);
   }
 }
 
 
 TEST(NewTarget) {
   InitializedHandleScope handle_scope;
   BytecodeGeneratorHelper helper;
 
+  int new_target = Register::new_target().index();
+
   ExpectedSnippet<int> snippets[] = {
       {"return new.target;",
        1 * kPointerSize,
        1,
-       8,
+       5,
        {
-           B(CallRuntime), U16(Runtime::kGetNewTarget), R(0), U8(0),  //
-           B(Star), R(0),                                             //
-           B(Return),                                                 //
-       }}
+           B(Ldar), R(new_target),  //
+           B(Star), R(0),           //
+           B(Return),               //
+       }},
+      {"new.target;",
+       1 * kPointerSize,
+       1,
+       6,
+       {
+           B(Ldar), R(new_target),  //
+           B(Star), R(0),           //
+           B(LdaUndefined),         //
+           B(Return),               //
+       }},
   };
 
   for (size_t i = 0; i < arraysize(snippets); i++) {
     Handle<BytecodeArray> bytecode_array =
         helper.MakeBytecodeForFunctionBody(snippets[i].code_snippet);
     CheckBytecodeArrayEqual(snippets[i], bytecode_array);
   }
 }
 
 
@@ skipping 270 matching lines @@
   for (size_t i = 0; i < arraysize(snippets); i++) {
     Handle<BytecodeArray> bytecode_array =
         helper.MakeBytecodeForFunctionBody(snippets[i].code_snippet);
     CheckBytecodeArrayEqual(snippets[i], bytecode_array);
   }
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8