Deprecate all diagnostics methods that use strings.

pkg/front_end/lib/kernel_generator.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.
 
 /// Defines the front-end API for converting source code to Dart Kernel objects.
 library front_end.kernel_generator;
 
 import 'compiler_options.dart';
 import 'dart:async' show Future;
 import 'dart:async';
 import 'package:front_end/src/base/processed_options.dart';
 import 'src/fasta/dill/dill_target.dart' show DillTarget;
-import 'src/fasta/errors.dart' show InputError;
+import 'src/fasta/deprecated_problems.dart' show deprecated_InputError;
 import 'src/fasta/kernel/kernel_target.dart' show KernelTarget;
 import 'package:kernel/kernel.dart' show Program;
 import 'package:kernel/target/targets.dart' show TargetFlags;
 import 'package:kernel/target/vm_fasta.dart' show VmFastaTarget;
 import 'src/fasta/ticker.dart' show Ticker;
 import 'src/fasta/translate_uri.dart' show TranslateUri;
 import 'src/simple_error.dart';
 
 /// Generates a kernel representation of the program whose main library is in
 /// the given [source].
@@ skipping 52 matching lines @@
 
     if (program.mainMethod == null) {
       return report("No 'main' method found.");
     }
 
     if (!options.compileSdk) {
       // TODO(sigmund): ensure that the result is not including
       // sources for the sdk, only external references.
     }
     return program;
-  } on InputError catch (e) {
-    options.onError(new SimpleError(e.format()));
+  } on deprecated_InputError catch (e) {
+    options.onError(new SimpleError(e.deprecated_format()));
     return null;
   }
 }
 
 /// Generates a kernel representation for a build unit.
 ///
 /// Intended for modular compilation.
 ///
 /// The build unit by default contains only the source files in [sources]
 /// (including library and part files), but if
@@ skipping 74 matching lines @@
     await kernelTarget.buildOutlines();
 
     Program program = await kernelTarget.buildProgram(trimDependencies: true);
 
     if (kernelTarget.errors.isNotEmpty) {
       kernelTarget.errors.forEach(report);
       return null;
     }
 
     return program;
-  } on InputError catch (e) {
-    options.onError(new SimpleError(e.format()));
+  } on deprecated_InputError catch (e) {
+    options.onError(new SimpleError(e.deprecated_format()));
     return null;
   }
 }