{"action":"created","comment":{"url":"https://api.github.com/repos/rust-lang/rust/pulls/comments/56702933","id":56702933,"diff_hunk":"@@ -3003,8 +3016,7 @@ impl<'a> Parser<'a> {\n                         this.parse_assoc_expr_with(op.precedence() + 1,\n                             LhsExpr::NotYetParsed)\n                 }),\n-                // the only operator handled here is `...` (the other non-associative operators are\n-                // special-cased above)\n+                // no operators are currently handled here","path":"src/libsyntax/parse/parser.rs","position":57,"original_position":57,"commit_id":"bbe56ac7f2ccbecbb3aba4a6ba23893935ce7e8e","original_commit_id":"bbe56ac7f2ccbecbb3aba4a6ba23893935ce7e8e","user":{"login":"durka","id":47007,"avatar_url":"https://avatars.githubusercontent.com/u/47007?v=3","gravatar_id":"","url":"https://api.github.com/users/durka","html_url":"https://github.com/durka","followers_url":"https://api.github.com/users/durka/followers","following_url":"https://api.github.com/users/durka/following{/other_user}","gists_url":"https://api.github.com/users/durka/gists{/gist_id}","starred_url":"https://api.github.com/users/durka/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/durka/subscriptions","organizations_url":"https://api.github.com/users/durka/orgs","repos_url":"https://api.github.com/users/durka/repos","events_url":"https://api.github.com/users/durka/events{/privacy}","received_events_url":"https://api.github.com/users/durka/received_events","type":"User","site_admin":false},"body":"AFAIK this code is dead. [Here is the comment](https://github.com/rust-lang/rust/blob/stable/src/libsyntax/parse/parser.rs#L2836-L2837) from before my original #30884. I made use of that \"future convenience\" since I originally didn't care to parse `a...`, but to produce a good error I had to back that out and use the same special case as `a..`.","created_at":"2016-03-18T18:35:52Z","updated_at":"2016-03-18T18:35:52Z","html_url":"https://github.com/rust-lang/rust/pull/32267#discussion_r56702933","pull_request_url":"https://api.github.com/repos/rust-lang/rust/pulls/32267","_links":{"self":{"href":"https://api.github.com/repos/rust-lang/rust/pulls/comments/56702933"},"html":{"href":"https://github.com/rust-lang/rust/pull/32267#discussion_r56702933"},"pull_request":{"href":"https://api.github.com/repos/rust-lang/rust/pulls/32267"}}},"pull_request":{"url":"https://api.github.com/repos/rust-lang/rust/pulls/32267","id":62942718,"html_url":"https://github.com/rust-lang/rust/pull/32267","diff_url":"https://github.com/rust-lang/rust/pull/32267.diff","patch_url":"https://github.com/rust-lang/rust/pull/32267.patch","issue_url":"https://api.github.com/repos/rust-lang/rust/issues/32267","number":32267,"state":"open","locked":false,"title":"melt the ICE when lowering an impossible range","user":{"login":"durka","id":47007,"avatar_url":"https://avatars.githubusercontent.com/u/47007?v=3","gravatar_id":"","url":"https://api.github.com/users/durka","html_url":"https://github.com/durka","followers_url":"https://api.github.com/users/durka/followers","following_url":"https://api.github.com/users/durka/following{/other_user}","gists_url":"https://api.github.com/users/durka/gists{/gist_id}","starred_url":"https://api.github.com/users/durka/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/durka/subscriptions","organizations_url":"https://api.github.com/users/durka/orgs","repos_url":"https://api.github.com/users/durka/repos","events_url":"https://api.github.com/users/durka/events{/privacy}","received_events_url":"https://api.github.com/users/durka/received_events","type":"User","site_admin":false},"body":"Emit a fatal error instead of panicking when HIR lowering encounters a range with no `end` point.\r\n\r\nThis involved adding a method to wire up `LoweringContext::span_fatal`.\r\n\r\nFixes #32245 (cc @nodakai).\r\n\r\nr? 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