Issue 25827. Don't propose to remove the type of an incomplete variable declaration.

pkg/analysis_server/lib/src/services/correction/assist_internal.dart

Index: pkg/analysis_server/lib/src/services/correction/assist_internal.dart
diff --git a/pkg/analysis_server/lib/src/services/correction/assist_internal.dart b/pkg/analysis_server/lib/src/services/correction/assist_internal.dart
index a35eeb82b9880b9a8524f12a2cf6ff0a4a30a65c..0fbdee6c9e9fe5ffcfb5002270d46e29c432e994 100644
--- a/pkg/analysis_server/lib/src/services/correction/assist_internal.dart
+++ b/pkg/analysis_server/lib/src/services/correction/assist_internal.dart
@@ -1450,6 +1450,11 @@ class AssistProcessor {
       _coverageMarker();
       return;
     }
+    // ignore if an incomplete variable declaration
+    if (firstVariable.name.isSynthetic) {

[Brian Wilkerson, 2016/03/01 19:50:08]

Do we want to do this only for the first variable, or should we look at all of
the variables? What about

TypeName a, ;

or

TypeName a, ,c;

+      _coverageMarker();
+      return;
+    }
     // add edit
     Token keyword = declarationList.keyword;
     SourceRange typeRange = rangeStartStart(typeNode, firstVariable);