Specify patched_sdk location with --compile-sdk.

pkg/front_end/lib/src/fasta/outline.dart

 // Copyright (c) 2016, 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.
 
 library fasta.outline;
 
 import 'dart:async' show
     Future;
 
 import 'dart:io' show
@@ skipping 20 matching lines @@
 
 import 'ticker.dart' show
     Ticker;
 
 import 'translate_uri.dart' show
     TranslateUri;
 
 import 'ast_kind.dart' show
     AstKind;
 
-// TODO(ahe): Remove this import. Instead make the SDK available as resource in
-// the executable, or something similar.
-import 'testing/kernel_chain.dart' show
-    computePatchedSdk;
-
 Future<KernelTarget> outline(List<String> arguments) async {
   try {
     return await CompilerCommandLine.withGlobalOptions(
         "outline", arguments, (CompilerContext c) async {
       if (c.options.verbose) {
         print("Building outlines for ${arguments.join(' ')}");
       }
       return await doOutline(c, new Ticker(isVerbose: c.options.verbose),
           c.options.output);
     });
@@ skipping 33 matching lines @@
     });
   } on InputError catch (e) {
     exitCode = 1;
     print(e.format());
     return null;
   }
 }
 
 Future<KernelTarget> doOutline(CompilerContext c, Ticker ticker,
     [Uri output]) async {
-  Uri sdk = await computePatchedSdk();
-  ticker.logMs("Found patched SDK");
-  TranslateUri uriTranslator = await TranslateUri.parse(sdk);
+  TranslateUri uriTranslator = await TranslateUri.parse(c.options.sdk);
   ticker.logMs("Read packages file");
   DillTarget dillTarget = new DillTarget(ticker, uriTranslator);
   KernelTarget kernelTarget =
       new KernelTarget(dillTarget, uriTranslator, c.uriToSource);
   Uri platform = c.options.platform;
   if (platform != null) {
     dillTarget.read(platform);
   }
   String argument = c.options.arguments.first;
   Uri uri = Uri.base.resolve(argument);
@@ skipping 26 matching lines @@
     } catch (e, s) {
       exitCode = 1;
       print("Verification of program failed: $e");
       if (s != null && c.options.verbose) {
         print(s);
       }
     }
   }
   return uri;
 }