Fix the build after previous commit.

test/cctest/test-compiler.cc

Index: test/cctest/test-compiler.cc
diff --git a/test/cctest/test-compiler.cc b/test/cctest/test-compiler.cc
index da675d741de6c6f09fcdbdcdd88aaa65e8efde14..a6b537790a0fe449108afaa505919c0949b54fbd 100644
--- a/test/cctest/test-compiler.cc
+++ b/test/cctest/test-compiler.cc
@@ -115,7 +115,8 @@ static void SetGlobalProperty(const char* name, Object* value) {
 static Handle<JSFunction> Compile(const char* source) {
   Handle<String> source_code(Factory::NewStringFromUtf8(CStrVector(source)));
   Handle<JSFunction> boilerplate =
-      Compiler::Compile(source_code, Handle<String>(), 0, 0, NULL, NULL);
+      Compiler::Compile(source_code, Handle<String>(), 0, 0, NULL, NULL,
+                        Handle<String>::null());
   return Factory::NewFunctionFromBoilerplate(boilerplate,
                                              Top::global_context());
 }