Add toUri and fromUri functions to pathos.

pkg/analyzer_experimental/lib/analyzer.dart

Index: pkg/analyzer_experimental/lib/analyzer.dart
diff --git a/pkg/analyzer_experimental/lib/analyzer.dart b/pkg/analyzer_experimental/lib/analyzer.dart
index 30f88576ef889e5b387d671a4398b60807b37733..47ca97cd61f7e8eae1a8dbf00f1c4e32ddf55c2b 100644
--- a/pkg/analyzer_experimental/lib/analyzer.dart
+++ b/pkg/analyzer_experimental/lib/analyzer.dart
@@ -6,6 +6,8 @@ library analyzer;
 
 import 'dart:io';
 
+import 'package:pathos/path.dart' as pathos;
+
 import 'src/error.dart';
 import 'src/generated/ast.dart';
 import 'src/generated/error.dart';
@@ -13,7 +15,6 @@ import 'src/generated/java_io.dart';
 import 'src/generated/parser.dart';
 import 'src/generated/scanner.dart';
 import 'src/generated/source_io.dart';
-import 'src/utils.dart';
 
 export 'src/error.dart';
 export 'src/generated/ast.dart';
@@ -25,7 +26,7 @@ CompilationUnit parseDartFile(String path) {
   var contents = new File(path).readAsStringSync();
   var errorCollector = new _ErrorCollector();
   var sourceFactory = new SourceFactory.con2([new FileUriResolver()]);
-  var source = sourceFactory.forUri(pathToFileUri(path).toString());
+  var source = sourceFactory.forUri(pathos.toUri(path).toString());
   var scanner = new StringScanner(source, contents, errorCollector);
   var token = scanner.tokenize();
   var parser = new Parser(source, errorCollector);