Reject deprecated language features.

dart/sdk/lib/_internal/compiler/implementation/compiler.dart

Index: dart/sdk/lib/_internal/compiler/implementation/compiler.dart
diff --git a/dart/sdk/lib/_internal/compiler/implementation/compiler.dart b/dart/sdk/lib/_internal/compiler/implementation/compiler.dart
index 9ad691915fc523da02190f61526daf5feb89bc69..dc843ebfeeefddd40e1af5f110b6abd2c655ecbf 100644
--- a/dart/sdk/lib/_internal/compiler/implementation/compiler.dart
+++ b/dart/sdk/lib/_internal/compiler/implementation/compiler.dart
@@ -104,6 +104,8 @@ abstract class Compiler implements DiagnosticListener {
   final bool enableUserAssertions;
   final bool enableConcreteTypeInference;
   final bool analyzeAll;
+  final bool rejectDeprecatedFeatures;
+  final bool omgThisIsALongOptionName;
 
   bool disableInlining = false;
 
@@ -215,6 +217,8 @@ abstract class Compiler implements DiagnosticListener {
             bool generateSourceMap: true,
             bool disallowUnsafeEval: false,
             this.analyzeAll: false,
+            this.rejectDeprecatedFeatures: false,
+            this.omgThisIsALongOptionName: false,
             List<String> strips: const []})
       : libraries = new Map<String, LibraryElement>(),
         progress = new Stopwatch() {
@@ -331,12 +335,10 @@ abstract class Compiler implements DiagnosticListener {
     try {
       runCompiler(uri);
     } on CompilerCancelledException catch (exception) {
-      log(exception.toString());
-      log('compilation failed');
+      log('Error: $exception');
       return false;
     }
     tracer.close();
-    log('compilation succeeded');
     return true;
   }
 
@@ -757,6 +759,19 @@ abstract class Compiler implements DiagnosticListener {
     reportDiagnostic(span, "$message", kind);
   }
 
+  void onDeprecatedFeature(Spannable span, String feature) {
+    if (!omgThisIsALongOptionName &&
+        currentElement.getLibrary().isPlatformLibrary) {
+      return;
+    }
+    var kind = rejectDeprecatedFeatures
+        ? api.Diagnostic.ERROR : api.Diagnostic.WARNING;
+    var message = rejectDeprecatedFeatures
+        ? MessageKind.DEPRECATED_FEATURE_ERROR.error([feature])
+        : MessageKind.DEPRECATED_FEATURE_WARNING.error([feature]);
+    reportMessage(spanFromSpannable(span), message, kind);
+  }
+
   void reportDiagnostic(SourceSpan span, String message, api.Diagnostic kind);
 
   SourceSpan spanFromTokens(Token begin, Token end, [Uri uri]) {