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Move `if let` behind a feature gate

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Kevin Ballard 2014-08-26 20:00:41 -07:00 committed by Manish Goregaokar
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@ -2441,6 +2441,8 @@ The currently implemented features of the reference compiler are:
* `default_type_params` - Allows use of default type parameters. The future of
this feature is uncertain.
* `if_let` - Allows use of the `if let` desugaring syntax.
* `intrinsics` - Allows use of the "rust-intrinsics" ABI. Compiler intrinsics
are inherently unstable and no promise about them is made.