Deprecate all diagnostics methods that use strings.

pkg/front_end/test/fasta/shaker_test.dart

 // Copyright (c) 2017, 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.md file.
 
 /// Tests basic functionality of the API tree-shaker.
 ///
 /// Each input file is built and tree-shaken, then we check that the set of
 /// libraries, classes, and members that are retained match those declared in an
 /// expectations file.
 ///
 /// Input files may contain markers to turn on flags that configure this
 /// runner. Currently only the following marker is recognized:
 ///   @@SHOW_CORE_LIBRARIES@@ - whether to check for retained information from
 ///      the core libraries. By default this runner only checks for members of
 ///      pkg/front_end/testcases/shaker/lib/lib.dart.
 library fasta.test.shaker_test;
 
 import 'dart:async' show Future;
 import 'dart:convert' show JSON;
 import 'dart:io' show File;
 
 export 'package:testing/testing.dart' show Chain, runMe;
 import 'package:front_end/physical_file_system.dart';
 import 'package:front_end/src/fasta/dill/dill_target.dart' show DillTarget;
-import 'package:front_end/src/fasta/errors.dart' show InputError;
+import 'package:front_end/src/fasta/deprecated_problems.dart'
+    show deprecated_InputError;
 import 'package:front_end/src/fasta/kernel/kernel_outline_shaker.dart';
 import 'package:front_end/src/fasta/kernel/kernel_target.dart'
     show KernelTarget;
 import 'package:front_end/src/fasta/kernel/verifier.dart' show verifyProgram;
 import 'package:front_end/src/fasta/testing/kernel_chain.dart' show runDiff;
 import 'package:front_end/src/fasta/testing/patched_sdk_location.dart';
 import 'package:front_end/src/fasta/ticker.dart' show Ticker;
 import 'package:front_end/src/fasta/translate_uri.dart' show TranslateUri;
 import 'package:front_end/src/fasta/util/relativize.dart' show relativizeUri;
 import 'package:kernel/ast.dart' show Program;
@@ skipping 75 matching lines @@
       var libUri = inputUri.resolve('lib/lib.dart');
       sourceTarget.read(libUri);
       sourceTarget.read(inputUri);
       var contents = new File.fromUri(inputUri).readAsStringSync();
       var showCoreLibraries = contents.contains("@@SHOW_CORE_LIBRARIES@@");
       await sourceTarget.buildOutlines();
       var program = await sourceTarget.buildProgram();
       bool isIncluded(Uri uri) => !_isTreeShaken(uri);
       trimProgram(program, isIncluded);
       return pass(new _IntermediateData(inputUri, program, showCoreLibraries));
-    } on InputError catch (e, s) {
+    } on deprecated_InputError catch (e, s) {
       return fail(null, e.error, s);
     }
   }
 }
 
 /// Intermediate result from the testing chain.
 class _IntermediateData {
   /// The input URI provided to the test.
   final Uri uri;
 
@@ skipping 70 matching lines @@
               null, "$entryUri doesn't match ${expectedFile.uri}\n$diff");
         }
       } else {
         return pass(actualResult);
       }
     }
     if (updateExpectations) {
       expectedFile.writeAsStringSync(actualResult);
       return pass(actualResult);
     } else {
-      return fail(
-          actualResult,
-          """
+      return fail(actualResult, """
 Please create file ${expectedFile.path} with this content:
 $buffer""");
     }
   }
 }
 
 /// A special library used only to test the shaker. The suite above will
 /// tree-shake the contents of this library.
 const _specialLibraryPath = 'pkg/front_end/testcases/shaker/lib/lib.dart';
 
 /// Tree-shake dart:* libraries and the library under [_specialLibraryPath].
 bool _isTreeShaken(Uri uri) =>
     uri.isScheme('dart') ||
     Uri.base.resolveUri(uri).path.endsWith(_specialLibraryPath);