Remove feature gate directives for if_let, while_let, and tuple_indexing.

[csouth3]

This is a revival of #19517 (per request of @alexcrichton) now that the new snapshots have landed. We can now remove the last feature gates for if_let, while_let, and tuple_indexing scattered throughout the test sources since these features have been added to Rust.

Closes #19473.

[steveklabnik]

Woooo

Sent from my iPhone

On Dec 11, 2014, at 21:18, Chase Southwood notifications@github.com wrote:

This is a revival of #19517 (per request of @alexcrichton) now that the new snapshots have landed. We can now remove the last feature gates for if_let, while_let, and tuple_indexing scattered throughout the test sources since these features have been added to Rust.

Closes #19473.

You can merge this Pull Request by running

git pull https://github.com/csouth3/rust remove-featuregates
Or view, comment on, or merge it at:

#19763

Commit Summary

Remove feature gate directives for if_let, while_let, and tuple_indexing.
File Changes

M src/test/compile-fail/issue-19096.rs (2)
M src/test/run-pass/borrow-tuple-fields.rs (2)
M src/test/run-pass/if-let.rs (2)
M src/test/run-pass/issue-18412.rs (2)
M src/test/run-pass/issue-19244.rs (2)
M src/test/run-pass/issue-19367.rs (1)
M src/test/run-pass/tuple-index-fat-types.rs (2)
M src/test/run-pass/tuple-index.rs (2)
M src/test/run-pass/while-let.rs (2)
Patch Links:

https://github.com/rust-lang/rust/pull/19763.patch
https://github.com/rust-lang/rust/pull/19763.diff
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[csouth3]

Per @mdinger at #19473, I forgot to remove these from the list of compiler features in the reference!
I've updated the pull request to remove them from that list now. @sfackler re-r?

[Gankra]

@csouth3 There's more gates. Dunno if they slipped in or what. CC #19881 and #19876

[csouth3]

Yeah, I know for sure that the ones in borrowck must have been added after this was r+ed since borrowck wasn't even a crate when I originally opened this...oops! Looks like there's an approved PR in the queue now to get the last 3 though.