Add optional message to assert in Dart2js - continued

pkg/compiler/lib/src/common/resolution.dart

Index: pkg/compiler/lib/src/common/resolution.dart
diff --git a/pkg/compiler/lib/src/common/resolution.dart b/pkg/compiler/lib/src/common/resolution.dart
index e43cf148a21446d5de9f46b64a9112fa5eb3a411..86a21bd10afd65ab064488a894d3c5613006af02 100644
--- a/pkg/compiler/lib/src/common/resolution.dart
+++ b/pkg/compiler/lib/src/common/resolution.dart
@@ -43,8 +43,8 @@ class ResolutionWorkItem extends WorkItem {
 
 /// Backend callbacks function specific to the resolution phase.
 class ResolutionCallbacks {
-  /// Register that [node] is a call to `assert`.
-  void onAssert(Send node, Registry registry) {}
+  /// Register that an assert has been seen.
+  void onAssert(bool hasMessage, Registry registry) {}
 
   /// Register that an 'await for' has been seen.
   void onAsyncForIn(AsyncForIn node, Registry registry) {}