Eliminate unused url mapping parameter in dartutils

runtime/vm/debugger_api_impl_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.
 
 // TODO(zra): Remove when tests are ready to enable.
 #include "platform/globals.h"
 #if !defined(TARGET_ARCH_ARM64)
 
 #include "include/dart_debugger_api.h"
 #include "include/dart_mirrors_api.h"
@@ skipping 1914 matching lines @@
   loc.token_pos = -1;
   Dart_Handle res = Dart_GetClosureInfo(clo, &name, &sig, &loc);
   EXPECT_VALID(res);
   EXPECT_TRUE(res);
   EXPECT_VALID(name);
   EXPECT(Dart_IsString(name));
   EXPECT_STREQ("foo", ToCString(name));
   EXPECT(Dart_IsString(sig));
   EXPECT_STREQ("() => void", ToCString(sig));
   EXPECT(Dart_IsString(loc.script_url));
-  EXPECT_STREQ("dart:test-lib", ToCString(loc.script_url));
+  EXPECT_STREQ("test-lib", ToCString(loc.script_url));
   EXPECT_EQ(0, loc.token_pos);
   EXPECT(loc.library_id > 0);
 }
 
 
 TEST_CASE(Debug_GetSupertype) {
   const char* kScriptChars =
       "class Test {\n"
       "}\n"
       "class Test1 extends Test {\n"
@@ skipping 193 matching lines @@
       " null, 5, 17, 5, 18, 9, 19, 12,"
       " null, 6, 21, 1,"
       " null, 8, 24, 1, 25, 5, 26, 6, 27, 8,"
       " null, 9, 29, 1]",
       tokens_cstr);
 }
 
 }  // namespace dart
 
 #endif  // !defined(TARGET_ARCH_ARM64)