Eliminate temporary locals for some expressions

runtime/vm/code_generator_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/assert.h"
 #include "vm/globals.h"
 #include "vm/ast.h"
 #include "vm/assembler.h"
 #include "vm/class_finalizer.h"
 #include "vm/code_generator.h"
@@ skipping 332 matching lines @@
 
   String& constructor_name = String::Handle(String::New("A."));
   Function& constructor =
       Function::ZoneHandle(cls.LookupConstructor(constructor_name));
   EXPECT(!constructor.IsNull());
 
   // The unit test creates an instance of class A and calls function 'bar'.
   String& function_bar_name = String::ZoneHandle(Symbols::New("bar"));
   ArgumentListNode* no_arguments = new ArgumentListNode(kPos);
   const TypeArguments& no_type_arguments = TypeArguments::ZoneHandle();
-  const LocalVariable* allocated = test->CreateTempConstVariable("alloc");
   InstanceCallNode* call_bar = new InstanceCallNode(
       kPos,
       new ConstructorCallNode(
-          kPos, no_type_arguments, constructor, no_arguments, allocated),
+          kPos, no_type_arguments, constructor, no_arguments),
       function_bar_name,
       no_arguments);
 
   test->node_sequence()->Add(new ReturnNode(kPos, call_bar));
 }
 CODEGEN_TEST_RUN(InstanceCallCodegen, Smi::New(42))
 
 
 // Tested Dart code:
 //   int sum(int a, int b,
@@ skipping 160 matching lines @@
   Class& cls = Class::ZoneHandle(LookupClass(lib, "A"));
   EXPECT(!cls.IsNull());
 
   String& constructor_name = String::Handle(String::New("A."));
   Function& constructor =
       Function::ZoneHandle(cls.LookupConstructor(constructor_name));
   EXPECT(!constructor.IsNull());
 
   const TypeArguments& no_type_arguments = TypeArguments::ZoneHandle();
   ArgumentListNode* no_arguments = new ArgumentListNode(kPos);
-  const LocalVariable* allocated = test->CreateTempConstVariable("alloc");
   test->node_sequence()->Add(new ReturnNode(kPos, new ConstructorCallNode(
-      kPos, no_type_arguments, constructor, no_arguments, allocated)));
+      kPos, no_type_arguments, constructor, no_arguments)));
 }
 
 
 CODEGEN_TEST_RAW_RUN(AllocateNewObjectCodegen, function) {
   const Object& result = Object::Handle(
       DartEntry::InvokeFunction(function, Object::empty_array()));
   EXPECT(!result.IsError());
   const GrowableObjectArray& libs =  GrowableObjectArray::Handle(
       Isolate::Current()->object_store()->libraries());
   ASSERT(!libs.IsNull());
   // App lib is the last one that was loaded.
   intptr_t num_libs = libs.Length();
   Library& app_lib = Library::Handle();
   app_lib ^= libs.At(num_libs - 1);
   ASSERT(!app_lib.IsNull());
   const Class& cls = Class::Handle(
       app_lib.LookupClass(String::Handle(Symbols::New("A"))));
   EXPECT_EQ(cls.raw(), result.clazz());
 }
 
 }  // namespace dart