Add option --compile-sdk to fasta compile and run.

pkg/front_end/lib/src/fasta/source/diet_listener.dart

Index: pkg/front_end/lib/src/fasta/source/diet_listener.dart
diff --git a/pkg/front_end/lib/src/fasta/source/diet_listener.dart b/pkg/front_end/lib/src/fasta/source/diet_listener.dart
index dd5a19da04cac42d274837a21f397c4dd8b4e230..366f1c11c9ff01d5c10d77eef9393278a1545615 100644
--- a/pkg/front_end/lib/src/fasta/source/diet_listener.dart
+++ b/pkg/front_end/lib/src/fasta/source/diet_listener.dart
@@ -13,14 +13,24 @@ import 'package:kernel/class_hierarchy.dart' show
 import 'package:kernel/core_types.dart' show
     CoreTypes;
 
-import 'package:front_end/src/fasta/parser/parser.dart' show
+import '../parser/parser.dart' show
     Parser,
     optional;
 
-import 'package:front_end/src/fasta/scanner/token.dart' show
+import '../scanner/token.dart' show
     BeginGroupToken,
     Token;
 
+import '../parser/dart_vm_native.dart' show
+    removeNativeClause,
+    skipNativeClause;
+
+import '../parser/error_kind.dart' show
+    ErrorKind;
+
+import '../util/link.dart' show
+    Link;
+
 import '../errors.dart' show
     Crash,
     InputError,
@@ -60,6 +70,8 @@ class DietListener extends StackListener {
 
   final AstKind astKind;
 
+  final bool isDartLibrary;
+
   ClassBuilder currentClass;
 
   /// For top-level declarations, this is the library scope. For class members,
@@ -69,7 +81,8 @@ class DietListener extends StackListener {
   DietListener(SourceLibraryBuilder library, this.elementStore, this.hierarchy,
       this.coreTypes, this.astKind)
       : library = library,
-        memberScope = library.scope;
+        memberScope = library.scope,
+        isDartLibrary = library.uri.scheme == "dart";
 
   @override
   Uri get uri => library.uri;
@@ -454,6 +467,24 @@ class DietListener extends StackListener {
     checkEmpty();
   }
 
+  @override
+  Token handleUnrecoverableError(Token token, ErrorKind kind, Map arguments) {
+    if (isDartLibrary && kind == ErrorKind.ExpectedBlockToSkip) {
+      Token recover = skipNativeClause(token);
+      if (recover != null) {
+        assert(isTargetingDartVm);
+        return recover;
+      }
+    }
+    return super.handleUnrecoverableError(token, kind, arguments);
+  }
+
+  @override
+  Link<Token> handleMemberName(Link<Token> identifiers) {
+    if (!isDartLibrary || identifiers.isEmpty) return identifiers;
+    return removeNativeClause(identifiers);
+  }
+
   void parseFunctionBody(StackListener listener, Token token) {
     try {
       Parser parser = new Parser(listener);
@@ -528,4 +559,9 @@ class DietListener extends StackListener {
     // print("  ${stack.join('\n  ')}");
     // print(name);
   }
+
+  bool get isTargetingDartVm {
+    // TODO(ahe): Find a more reliable way to check if this is the Dart VM.
+    return coreTypes.getCoreLibrary("dart:_js_helper") == null;
+  }
 }