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

pkg/front_end/lib/src/fasta/kernel/body_builder.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.
 
 library fasta.body_builder;
 
 import 'package:front_end/src/fasta/parser/parser.dart' show
     FormalParameterType,
     optional;
 
 import 'package:front_end/src/fasta/parser/error_kind.dart' show
     ErrorKind;
 
 import 'package:kernel/ast.dart';
 
 import 'package:kernel/clone.dart' show
     CloneVisitor;
 
 import 'package:kernel/transformations/flags.dart' show
     TransformerFlag;
 
 import 'package:kernel/class_hierarchy.dart' show
     ClassHierarchy;
 
 import 'package:kernel/core_types.dart' show
     CoreTypes;
 
+import '../parser/dart_vm_native.dart' show
+    skipNativeClause;
+
 import 'package:front_end/src/fasta/scanner/token.dart' show
     BeginGroupToken,
     Token,
     isBinaryOperator,
     isMinusOperator;
 
 import '../errors.dart' show
     InputError,
     internalError;
 
@@ skipping 79 matching lines @@
   @override
   final CoreTypes coreTypes;
 
   final bool isInstanceMember;
 
   final Map<String, FieldInitializer> fieldInitializers =
       <String, FieldInitializer>{};
 
   final Scope enclosingScope;
 
+  final bool isDartLibrary;
+
   Scope formalParameterScope;
 
   bool isFirstIdentifier = false;
 
   bool hasParserError = false;
 
   bool inInitializer = false;
 
   bool inCatchClause = false;
 
   int functionNestingLevel = 0;
 
   Statement compileTimeErrorInTry;
 
   Statement compileTimeErrorInLoopOrSwitch;
 
   Scope switchScope;
 
   CloneVisitor cloner;
 
-  BodyBuilder(this.library, this.member, Scope scope, this.formalParameterScope,
-      this.hierarchy, this.coreTypes, this.classBuilder, this.isInstanceMember)
+  /// Set to true each time we parse a native function body. It is reset in
+  /// [handleInvalidFunctionBody] which is called immediately after.
+  bool lastErrorWasNativeFunctionBody = false;
+
+  BodyBuilder(KernelLibraryBuilder library, this.member, Scope scope,
+      this.formalParameterScope, this.hierarchy, this.coreTypes,
+      this.classBuilder, this.isInstanceMember)
       : enclosingScope = scope,
+        library = library,
+        isDartLibrary = library.uri.scheme == "dart",
         super(scope);
 
   bool get inConstructor {
     return functionNestingLevel == 0 && member is KernelConstructorBuilder;
   }
 
   bool get isInstanceContext {
     return isInstanceMember || member is KernelConstructorBuilder;
   }
 
@@ skipping 1974 matching lines @@
   void handleRecoverableError(Token token, ErrorKind kind, Map arguments) {
     super.handleRecoverableError(token, kind, arguments);
     if (!hasParserError) {
       print("$uri:${recoverableErrors.last}");
     }
     hasParserError = true;
   }
 
   @override
   Token handleUnrecoverableError(Token token, ErrorKind kind, Map arguments) {
-    if (kind == ErrorKind.UnexpectedToken) {
+    if (isDartLibrary && kind == ErrorKind.ExpectedFunctionBody) {
+      Token recover = skipNativeClause(token);
+      if (recover != null) {
+        buildNative(unescapeString(token.next.value));
+        return recover;
+      }
+    } else if (kind == ErrorKind.UnexpectedToken) {
       String expected = arguments["expected"];
       const List<String> trailing = const <String>[")", "}", ";", ","];
       if (trailing.contains(token.stringValue) && trailing.contains(expected)) {
         arguments.putIfAbsent("actual", () => token.value);
         handleRecoverableError(token, ErrorKind.ExpectedButGot, arguments);
       }
       return token;
     }
     return super.handleUnrecoverableError(token, kind, arguments);
   }
@@ skipping 43 matching lines @@
   void handleOperator(Token token) {
     debugEvent("Operator");
     push(new Operator(token.stringValue)..fileOffset = token.charOffset);
   }
 
   dynamic inputError(String message, [int charOffset = -1]) {
     return errors.inputError(uri, charOffset, message);
   }
 
   @override
+  void handleInvalidFunctionBody(Token token) {
+    if (!lastErrorWasNativeFunctionBody) {
+      push(new Block(<Statement>[new InvalidStatement()]));
+    }
+    lastErrorWasNativeFunctionBody = false;
+  }
+
+  void buildNative(String native) {
+    lastErrorWasNativeFunctionBody = true;
+
+    // From dartk:
+    //
+    //   currentMember.isExternal = true;
+    //   currentMember.addAnnotation(new ast.ConstructorInvocation(
+    //       scope.loader.getCoreClassConstructorReference('ExternalName',
+    //           library: 'dart:_internal'),
+    //       new ast.Arguments(<ast.Expression>[
+    //         new ast.StringLiteral(body.stringLiteral.stringValue)
+    //       ]),
+    //       isConst: true));
+    push(new Block(<Statement>[new InvalidStatement()]));
+  }
+
+  @override
   void debugEvent(String name) {
     // printEvent(name);
   }
 }
 
 // TODO(ahe): Shouldn't need to be an expression.
 class UnresolvedIdentifier extends InvalidExpression {
   final Name name;
 
   UnresolvedIdentifier(this.name);
@@ skipping 414 matching lines @@
   } else if (node is TypeDeclarationBuilder) {
     return node.name;
   } else if (node is PrefixBuilder) {
     return node.name;
   } else if (node is ThisPropertyAccessor) {
     return node.name.name;
   } else {
     return internalError("Unhandled: ${node.runtimeType}");
   }
 }