Update CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS to needsFix.

Change-Id: Id2616570f7b282561d1975537fd6e59470733c0c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/329783
Reviewed-by: Brian Wilkerson <[email protected]>
Commit-Queue: Keerti Parthasarathy <[email protected]>

Author: keertip

pkg/analysis_server/lib/src/services/correction/error_fix_status.yaml

@@ -278,7 +278,9 @@ CompileTimeErrorCode.CASE_BLOCK_NOT_TERMINATED:
     The typical fix, when someone thought a termination was not needed, is to
     add a break.
 CompileTimeErrorCode.CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS:
-  status: noFix
+  status: needsFix
+  notes: |-
+    The fix could be to change the switch expression to an if statement.
 CompileTimeErrorCode.CASE_EXPRESSION_TYPE_IS_NOT_SWITCH_EXPRESSION_SUBTYPE:
   status: noFix
 CompileTimeErrorCode.CAST_TO_NON_TYPE: