Fix DDC errors on DDC

lib/src/codegen/reify_coercions.dart

 // Copyright (c) 2015, 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 dev_compiler.src.codegen.reify_coercions;
 
 import 'package:analyzer/analyzer.dart' as analyzer;
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart' show AnalysisContext;
@@ skipping 357 matching lines @@
   }
 
   ///////////////// Private //////////////////////////////////
   Tuple2<Identifier, Function1<Expression, Expression>> _bindExpression(
       String hint, Expression e1) {
     if (e1 is Identifier) {
       return new Tuple2(e1, (e2) => e2);
     }
     var id = _vm.freshIdentifier(hint);
     var fp = AstBuilder.simpleFormal(id, null);
-    f(e2) => AstBuilder.parenthesize(AstBuilder.letExpression(fp, e1, e2));
+    Expression f(Expression e2) =>
+        AstBuilder.parenthesize(AstBuilder.letExpression(fp, e1, e2));
     return new Tuple2(id, f);
   }
 
   Expression _wrapExpression(Expression e, Wrapper w, String k, String loc) {
     var q = _addWrapper(w, loc);
     if (_runtime == null) {
       var app = AstBuilder.application(q, <Expression>[e]);
       app.staticType = w.toType;
       return app;
     }
@@ skipping 473 matching lines @@
     assert(_runtime != null);
     if (t.typeArguments != null && t.typeArguments.length > 0) {
       var w = AstBuilder.identifierFromString("_");
       var fp = AstBuilder.simpleFormal(w, t);
       var f = AstBuilder.blockFunction(<FormalParameter>[fp], <Statement>[]);
       return _runtime.type(f);
     }
     return t.name;
   }
 }