| Index: tools/testing/dart/multitest.dart | 
| diff --git a/tools/testing/dart/multitest.dart b/tools/testing/dart/multitest.dart | 
| index b67428505a39476926b8c12f71d3d026b4ef5301..10ad84a6723c70aac2228ad9370b03d44b5b8d89 100644 | 
| --- a/tools/testing/dart/multitest.dart | 
| +++ b/tools/testing/dart/multitest.dart | 
| @@ -159,7 +159,7 @@ Set<Path> _findAllRelativeImports(Path topLibrary) { | 
| Path libraryDir = topLibrary.directoryPath; | 
| // Matches #import( or #source( followed by " or ' followed by anything | 
| // except dart:, dart-ext: or /, at the beginning of a line. | 
| -  RegExp relativeImportRegExp = const RegExp( | 
| +  RegExp relativeImportRegExp = new RegExp( | 
| '^#(import|source)[(]["\'](?!(dart:|dart-ext:|/))([^"\']*)["\']'); | 
| while (!toSearch.isEmpty) { | 
| var thisPass = toSearch; | 
|  |