Deprecate all diagnostics methods that use strings.

pkg/front_end/tool/_fasta/analyzer_compile.dart

Index: pkg/front_end/tool/_fasta/analyzer_compile.dart
diff --git a/pkg/front_end/tool/_fasta/analyzer_compile.dart b/pkg/front_end/tool/_fasta/analyzer_compile.dart
index 8660520fee9240bf658ea9643a448ed01f002fc2..bc35acbb27779d33acfa3c9be06ce797b57d7737 100644
--- a/pkg/front_end/tool/_fasta/analyzer_compile.dart
+++ b/pkg/front_end/tool/_fasta/analyzer_compile.dart
@@ -19,7 +19,8 @@ import 'package:front_end/src/fasta/ticker.dart' show Ticker;
 
 import 'package:front_end/src/fasta/fasta.dart' show CompileTask;
 
-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/dill/dill_target.dart' show DillTarget;
 
@@ -38,9 +39,9 @@ Future<Uri> compile(List<String> arguments) async {
           new AnalyzerCompileTask(c, new Ticker(isVerbose: c.options.verbose));
       return await task.compile();
     });
-  } on InputError catch (e) {
+  } on deprecated_InputError catch (e) {
     exitCode = 1;
-    print(e.format());
+    print(e.deprecated_format());
     return null;
   }
 }