expose strong checker API, for use by analyzer_cli

lib/src/utils.dart

Index: lib/src/utils.dart
diff --git a/lib/src/utils.dart b/lib/src/utils.dart
index 979faf306e4e7bbc6d5dfc95c3442541d8772857..8165570674f8a5f14090a10079ff50927414c5bc 100644
--- a/lib/src/utils.dart
+++ b/lib/src/utils.dart
@@ -19,7 +19,9 @@ import 'package:analyzer/src/generated/ast.dart'
         AstNode,
         Expression,
         SimpleIdentifier,
-        MethodInvocation;
+        MethodInvocation,
+        NodeLocator,

[Jennifer Messerly, 2015/06/10 22:34:17]

will revert this.

+        UnifyingAstVisitor;
 import 'package:analyzer/src/generated/constant.dart' show DartObjectImpl;
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart'
@@ -79,7 +81,7 @@ String _toIdentifier(String name) {
 final _invalidCharInIdentifier = new RegExp(r'[^A-Za-z_$0-9]');
 
 /// Returns all libraries transitively imported or exported from [start].
-Iterable<LibraryElement> reachableLibraries(LibraryElement start) {
+List<LibraryElement> reachableLibraries(LibraryElement start) {
   var results = <LibraryElement>[];
   var seen = new Set();
   void find(LibraryElement lib) {