Remove invalid URI in an attempt to fix a windows bug.

pkg/analyzer/lib/analyzer.dart

 // Copyright (c) 2013, 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 analyzer;
 
 import 'dart:io';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/src/dart/scanner/reader.dart';
@@ skipping 17 matching lines @@
 /// If [name] is passed, it's used in error messages as the name of the code
 /// being parsed.
 ///
 /// Throws an [AnalyzerErrorGroup] if any errors occurred, unless
 /// [suppressErrors] is `true`, in which case any errors are discarded.
 ///
 /// If [parseFunctionBodies] is [false] then only function signatures will be
 /// parsed.
 CompilationUnit parseCompilationUnit(String contents,
     {String name, bool suppressErrors: false, bool parseFunctionBodies: true}) {
-  if (name == null) name = '<unknown source>';
-  var source = new StringSource(contents, name);
+  Source source = new StringSource(contents, name);
   return _parseSource(contents, source,
       suppressErrors: suppressErrors, parseFunctionBodies: parseFunctionBodies);
 }
 
 /// Parses a Dart file into an AST.
 ///
 /// Throws an [AnalyzerErrorGroup] if any errors occurred, unless
 /// [suppressErrors] is `true`, in which case any errors are discarded.
 ///
 /// If [parseFunctionBodies] is [false] then only function signatures will be
@@ skipping 72 matching lines @@
 
   /// The group of errors collected.
   AnalyzerErrorGroup get group =>
       new AnalyzerErrorGroup.fromAnalysisErrors(_errors);
 
   /// Whether any errors where collected.
   bool get hasErrors => !_errors.isEmpty;
 
   void onError(AnalysisError error) => _errors.add(error);
 }