{"action":"created","comment":{"url":"https://api.github.com/repos/Microsoft/TypeScript/pulls/comments/213161797","pull_request_review_id":149939009,"id":213161797,"node_id":"MDI0OlB1bGxSZXF1ZXN0UmV2aWV3Q29tbWVudDIxMzE2MTc5Nw==","diff_hunk":"@@ -21698,15 +21698,19 @@ namespace ts {\n          * to cache the result.\r\n          */\r\n         function getTypeOfExpression(node: Expression, cache?: boolean) {\r\n+            const expr = skipParentheses(node);\r","path":"src/compiler/checker.ts","position":4,"original_position":4,"commit_id":"a1c373c3c72a3010917ad41832f13463d92a60cf","original_commit_id":"a1c373c3c72a3010917ad41832f13463d92a60cf","user":{"login":"ahejlsberg","id":4226954,"node_id":"MDQ6VXNlcjQyMjY5NTQ=","avatar_url":"https://avatars1.githubusercontent.com/u/4226954?v=4","gravatar_id":"","url":"https://api.github.com/users/ahejlsberg","html_url":"https://github.com/ahejlsberg","followers_url":"https://api.github.com/users/ahejlsberg/followers","following_url":"https://api.github.com/users/ahejlsberg/following{/other_user}","gists_url":"https://api.github.com/users/ahejlsberg/gists{/gist_id}","starred_url":"https://api.github.com/users/ahejlsberg/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ahejlsberg/subscriptions","organizations_url":"https://api.github.com/users/ahejlsberg/orgs","repos_url":"https://api.github.com/users/ahejlsberg/repos","events_url":"https://api.github.com/users/ahejlsberg/events{/privacy}","received_events_url":"https://api.github.com/users/ahejlsberg/received_events","type":"User","site_admin":false},"body":"We _can_ do it this way, it just means that we won't bail out early during control flow analysis. It's simply a matter of how many cases we feel are worthwhile handling in `getTypeOfExpression`. In a TypeScript file it matters because you'll get an error with `--noImplicitAny`. In a JavaScript file it just means another `any`, which are a dime a dozen already, so to speak. So, I think it is 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