analyzer: Update comment for Metadata.hasDeprecated

Change-Id: I0000ba19a56d0760d09da5f458122a61473e2712
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/451140
Commit-Queue: Samuel Rawlins <[email protected]>
Reviewed-by: Konstantin Shcheglov <[email protected]>

Author: srawlins

pkg/analyzer/lib/dart/element/element.dart

@@ -3159,8 +3159,8 @@ abstract class Metadata {
   /// Whether the receiver has an annotation of the form `@awaitNotRequired`.
   bool get hasAwaitNotRequired;
 
-  /// Whether the receiver has an annotation of the form `@deprecated`
-  /// or `@Deprecated('..')`.
+  /// Whether the receiver has an annotation of the form `@deprecated`,
+  /// `@Deprecated('..')`, or any other `Deprecated` constructor.
   bool get hasDeprecated;
 
   /// Whether the receiver has an annotation of the form `@doNotStore`.