update status of unreported `COVARIANT_CONSTRUCTOR`

`COVARIANT_CONSTRUCTOR` is not reported by the parser (today) and constructors are treated the same as other members. This change updates fix status bookkeeping making it clear that the diagnostic isn't reported and so is not fixable.

Change-Id: I4944beef64e4c9ee42757430383291a54ae75f6d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/371061
Commit-Queue: Phil Quitslund <pquitslund@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
diff --git a/pkg/analysis_server/lib/src/services/correction/error_fix_status.yaml b/pkg/analysis_server/lib/src/services/correction/error_fix_status.yaml
index e837f31..db281cc 100644
--- a/pkg/analysis_server/lib/src/services/correction/error_fix_status.yaml
+++ b/pkg/analysis_server/lib/src/services/correction/error_fix_status.yaml
@@ -45,9 +45,9 @@
 #
 # Stats:
 # -  42 "needsEvaluation"
-# - 327 "needsFix"
+# - 326 "needsFix"
 # - 421 "hasFix"
-# - 516 "noFix"
+# - 517 "noFix"
 
 AnalysisOptionsErrorCode.INCLUDED_FILE_PARSE_ERROR:
   status: noFix
@@ -2605,9 +2605,10 @@
   notes: |-
     Remove either `covariant` or `static`.
 ParserErrorCode.COVARIANT_CONSTRUCTOR:
-  status: needsFix
+  status: noFix
   notes: |-
-    Remove `covariant`.
+    This error code is currently unreported and constructors
+    are treated the same as members (see `COVARIANT_MEMBER`).
 ParserErrorCode.COVARIANT_MEMBER:
   status: hasFix
 ParserErrorCode.DECLARATION_NAMED_AUGMENTED_INSIDE_AUGMENTATION: