1282833470
This commit adds support for *truly* unstable options in the compiler, as well as adding warnings for the start of the deprecation path of unstable-but-not-really options. Specifically, the following behavior is now in place for handling unstable options: * As before, an unconditional error is emitted if an unstable option is passed and the `-Z unstable-options` flag is not present. Note that passing another `-Z` flag does not require passing `-Z unstable-options` as well. * New flags added to the compiler will be in the `Unstable` category as opposed to the `UnstableButNotReally` category which means they will unconditionally emit an error when used on stable. * All current flags are in a category where they will emit warnings when used that the option will soon be a hard error. Also as before, it is intended that `-Z` is akin to `#![feature]` in a crate where it is required to unlock unstable functionality. A nightly compiler which is used without any `-Z` flags should only be exercising stable behavior. |
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| .. | ||
| Cargo.toml | ||
| driver.rs | ||
| lib.rs | ||
| pretty.rs | ||
| target_features.rs | ||
| test.rs | ||