Use typedefs in test.dart.

dart/tools/testing/dart/multitest.dart

Index: dart/tools/testing/dart/multitest.dart
diff --git a/dart/tools/testing/dart/multitest.dart b/dart/tools/testing/dart/multitest.dart
index 45751412aca84610c67269607e63908e0291a708..418bd3803088d28b2a1aa22438699eef53e4a13c 100644
--- a/dart/tools/testing/dart/multitest.dart
+++ b/dart/tools/testing/dart/multitest.dart
@@ -154,8 +154,8 @@ class _Annotation {
 // Find all relative imports and copy them into the dir that contains
 // the generated tests.
 Set<Path> _findAllRelativeImports(Path topLibrary) {
-  Set<String> toSearch = new Set<Path>.from([topLibrary]);
-  Set<String> foundImports = new HashSet<Path>();
+  Set<Path> toSearch = new Set<Path>.from([topLibrary]);
+  Set<Path> foundImports = new HashSet<Path>();
   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.
@@ -193,13 +193,8 @@ void DoMultitest(Path filePath,
                  Path suiteDir,
                  // TODO(zundel): Are the boolean flags now redundant
                  // with the 'multitestOutcome' field?
-                 Function doTest(Path filePath,
-                                 bool isNegative,
-                                 [bool isNegativeIfChecked,
-                                  bool hasFatalTypeErrors,
-                                  bool hasRuntimeErrors,
-                                  Set<String> multitestOutcome]),
-                 Function multitestDone) {
+                 CreateTest doTest,
+                 VoidFunction multitestDone) {
   // Each new test is a single String value in the Map tests.
   Map<String, String> tests = new Map<String, String>();
   Map<String, Set<String>> outcomes = new Map<String, Set<String>>();
@@ -244,10 +239,10 @@ void DoMultitest(Path filePath,
       bool isNegativeIfChecked = outcome.contains('dynamic type error');
       doTest(multitestFilename,
              isNegative,
-             isNegativeIfChecked,
-             enableFatalTypeErrors,
-             hasRuntimeErrors,
-             outcome);
+             isNegativeIfChecked: isNegativeIfChecked,
+             hasFatalTypeErrors: enableFatalTypeErrors,
+             hasRuntimeErrors: hasRuntimeErrors,
+             multitestOutcome: outcome);
     }
     multitestDone();
   });