Encode URIs stored in unlinked summaries to make them Uri.parse() safe.

pkg/analyzer/test/src/dart/analysis/driver_test.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 analyzer.test.driver;
 
 import 'dart:async';
 import 'dart:convert';
 
 import 'package:analyzer/dart/ast/ast.dart';
@@ skipping 871 matching lines @@
 ''',
         priority: true);
 
     AnalysisResult result = await driver.getResult(testFile);
     ClassDeclaration c = result.unit.declarations[1] as ClassDeclaration;
     Annotation a = c.metadata[0];
     expect(a.name.name, 'fff');
     expect(a.name.staticElement, new isInstanceOf<FunctionElement>());
   }
 
+  test_getResult_invalidUri() async {
+    String content = r'''
+import 'package:aaa/a1.dart';
+import '[invalid uri]';
+
+export '[invalid uri]';
+export 'package:aaa/a2.dart';
+
+part 'a3.dart';
+part '[invalid uri]';
+''';
+    addTestFile(content);
+
+    AnalysisResult result = await driver.getResult(testFile);
+    expect(result.path, testFile);
+  }
+
   test_getResult_invalidUri_exports_dart() async {
     String content = r'''
 export 'dart:async';
 export 'dart:noSuchLib';
 export 'dart:math';
 ''';
     addTestFile(content, priority: true);
 
     AnalysisResult result = await driver.getResult(testFile);
     expect(result.path, testFile);
@@ skipping 1093 matching lines @@
    * Return the [provider] specific path for the given Posix [path].
    */
   String _p(String path) => provider.convertPath(path);
 
   static String _md5(String content) {
     return hex.encode(md5.convert(UTF8.encode(content)).bytes);
   }
 }
 
 class _SourceMock extends TypedMock implements Source {}