Add InstrumentationService.logPriorityException() and use logException() in refactorings.

pkg/analysis_server/lib/src/edit/edit_domain.dart

Index: pkg/analysis_server/lib/src/edit/edit_domain.dart
diff --git a/pkg/analysis_server/lib/src/edit/edit_domain.dart b/pkg/analysis_server/lib/src/edit/edit_domain.dart
index 8dcf11568742e36b4a3979d812964919204f493e..b7c09b142471198f51da0486250291734247a2f5 100644
--- a/pkg/analysis_server/lib/src/edit/edit_domain.dart
+++ b/pkg/analysis_server/lib/src/edit/edit_domain.dart
@@ -294,9 +294,10 @@ class _RefactoringManager {
         });
       });
     }).catchError((exception, stackTrace) {
-      _reset();
+      server.instrumentationService.logException(exception, stackTrace);
       server.sendResponse(
           new Response.serverError(request, exception, stackTrace));
+      _reset();
     });
   }