Fixed compilation time measurement, restructure some code.

runtime/vm/unit_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 <stdio.h>
 
 #include "vm/unit_test.h"
 
 #include "bin/builtin.h"
 #include "bin/dartutils.h"
@@ skipping 116 matching lines @@
                                       Dart_Handle url,
                                       Dart_Handle import_map) {
   if (tag == kCanonicalizeUrl) {
     return url;
   }
   return Api::Success(Isolate::Current());
 }
 
 
 uword AssemblerTest::Assemble() {
-  const Code& code = Code::Handle(Code::FinalizeCode(name_, assembler_));
+  const String& function_name = String::ZoneHandle(String::NewSymbol(name_));
+  Function& function = Function::ZoneHandle(
+      Function::New(function_name, RawFunction::kFunction, true, false, 0));
+  const Code& code = Code::Handle(Code::FinalizeCode(function, assembler_));
   if (FLAG_disassemble) {
     OS::Print("Code for test '%s' {\n", name_);
     const Instructions& instructions =
         Instructions::Handle(code.instructions());
     uword start = instructions.EntryPoint();
     Disassembler::Disassemble(start, start + assembler_->CodeSize());
     OS::Print("}\n");
   }
   const Instructions& instructions = Instructions::Handle(code.instructions());
   return instructions.EntryPoint();
@@ skipping 46 matching lines @@
 
 bool CompilerTest::TestCompileFunction(const Function& function) {
   Isolate* isolate = Isolate::Current();
   ASSERT(isolate != NULL);
   ASSERT(ClassFinalizer::AllClassesFinalized());
   const Error& error = Error::Handle(Compiler::CompileFunction(function));
   return error.IsNull();
 }
 
 }  // namespace dart