Revert "Introduces `ParserOptions`."

pkg/compiler/lib/src/diagnostics/diagnostic_listener.dart

Index: pkg/compiler/lib/src/diagnostics/diagnostic_listener.dart
diff --git a/pkg/compiler/lib/src/diagnostics/diagnostic_listener.dart b/pkg/compiler/lib/src/diagnostics/diagnostic_listener.dart
index bd5750651d25f7d7a89643e8d9195becc526c9b3..8d5baac87977b58bf04af861f6d68421626e58bb 100644
--- a/pkg/compiler/lib/src/diagnostics/diagnostic_listener.dart
+++ b/pkg/compiler/lib/src/diagnostics/diagnostic_listener.dart
@@ -4,8 +4,6 @@
 
 library dart2js.diagnostic_listener;
 
-import '../options.dart' show
-    DiagnosticOptions;
 import 'source_span.dart' show
     SourceSpan;
 import 'spannable.dart' show
@@ -14,9 +12,57 @@ import '../elements/elements.dart' show
     Element;
 import 'messages.dart';
 
+class DiagnosticOptions {
+  /// Emit terse diagnostics without howToFix.
+  final bool terseDiagnostics;
+
+  /// List of packages for which warnings and hints are reported. If `null`,
+  /// no package warnings or hints are reported. If empty, all warnings and
+  /// hints are reported.
+  final List<String> _shownPackageWarnings;
+
+  /// If `true`, warnings are not reported.
+  final bool suppressWarnings;
+
+  /// If `true`, warnings cause the compilation to fail.
+  final bool fatalWarnings;
+
+  /// If `true`, hints are not reported.
+  final bool suppressHints;
+
+  const DiagnosticOptions({
+    this.suppressWarnings: false,
+    this.fatalWarnings: false,
+    this.suppressHints: false,
+    this.terseDiagnostics: false,
+    List<String> shownPackageWarnings: null})
+      : _shownPackageWarnings = shownPackageWarnings;
+
+
+  /// Returns `true` if warnings and hints are shown for all packages.
+  bool get showAllPackageWarnings {
+    return _shownPackageWarnings != null && _shownPackageWarnings.isEmpty;
+  }
+
+  /// Returns `true` if warnings and hints are hidden for all packages.
+  bool get hidePackageWarnings => _shownPackageWarnings == null;
+
+  /// Returns `true` if warnings should be should for [uri].
+  bool showPackageWarningsFor(Uri uri) {
+    if (showAllPackageWarnings) {
+      return true;
+    }
+    if (_shownPackageWarnings != null) {
+      return uri.scheme == 'package' &&
+          _shownPackageWarnings.contains(uri.pathSegments.first);
+    }
+    return false;
+  }
+}
+
 // TODO(johnniwinther): Rename and cleanup this interface. Add severity enum.
 abstract class DiagnosticReporter {
-  DiagnosticOptions get options;
+  DiagnosticOptions get options => const DiagnosticOptions();
 
   // TODO(karlklose): rename log to something like reportInfo.
   void log(message);