Expose which issue are supported

We need a way to know what is supported and what is not from
the MCP to reduce some noise in the output.
For that expose a new function to check things against.

Bug: none
Change-Id: I0a3ecad4df5c030b747f3712ed2839f3cc9c8bcf
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/7761323
Reviewed-by: Alex Rudenko <alexrudenko@chromium.org>
Commit-Queue: Nikolay Vitkov <nvitkov@chromium.org>

Author: Lightning00Blade

front_end/models/issues_manager/IssuesManager.test.ts

@@ -357,4 +357,15 @@ describeWithMockConnection('IssuesManager', () => {
     navigate(frame, {loaderId: 'loaderId2' as Protocol.Network.LoaderId});
     assert.strictEqual(issuesManager.numberOfIssues(), 0);
   });
+
+  describe('isIssueCodeSupported', () => {
+    it('returns true for supported issue codes', () => {
+      assert.isTrue(IssuesManager.IssuesManager.isIssueCodeSupported(Protocol.Audits.InspectorIssueCode.CookieIssue));
+    });
+
+    it('returns false for unsupported issue codes', () => {
+      assert.isFalse(IssuesManager.IssuesManager.isIssueCodeSupported(
+          'NonExistentIssueCode' as Protocol.Audits.InspectorIssueCode));
+    });
+  });
 });

front_end/models/issues_manager/IssuesManager.ts

@@ -155,6 +155,10 @@ const issueCodeHandlers = new Map<
   ],
 ]);
 
+export function isIssueCodeSupported(code: Protocol.Audits.InspectorIssueCode): boolean {
+  return issueCodeHandlers.has(code);
+}
+
 /**
  * Each issue reported by the backend can result in multiple `Issue` instances.
  * Handlers are simple functions hard-coded into a map.