Commit 6561424

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Add test for mixed stability levels

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	`1`	`+//! definitions for ../mixed-levels.rs`
	`2`	`+`
	`3`	`+#![stable(feature = "stable_feature", since = "1.0.0")]`
	`4`	`+#![feature(staged_api)]`
	`5`	`+#![crate_type = "lib"]`
	`6`	`+`
	`7`	`+#[stable(feature = "stable_a", since = "1.0.0")]`
	`8`	`+#[stable(feature = "stable_b", since = "1.8.2")]`
	`9`	`+#[macro_export]`
	`10`	`+macro_rules! stable_mac {`
	`11`	`+ () => ()`
	`12`	`+}`
	`13`	`+`
	`14`	`+#[unstable(feature = "unstable_a", issue = "none")]`
	`15`	`+#[stable(feature = "stable_a", since = "1.0.0")]`
	`16`	`+#[macro_export]`
	`17`	`+macro_rules! unstable_mac {`
	`18`	`+ () => ()`
	`19`	`+}`
	`20`	`+`
	`21`	`+#[stable(feature = "stable_feature", since = "1.0.0")]`
	`22`	`+#[rustc_const_stable(feature = "stable_c", since = "1.8.2")]`
	`23`	`+#[rustc_const_stable(feature = "stable_d", since = "1.0.0")]`
	`24`	`+pub const fn const_stable_fn() {}`
	`25`	`+`
	`26`	`+#[stable(feature = "stable_feature", since = "1.0.0")]`
	`27`	`+#[rustc_const_unstable(feature = "unstable_c", issue = "none")]`
	`28`	`+#[rustc_const_stable(feature = "stable_c", since = "1.8.2")]`
	`29`	`+pub const fn const_unstable_fn() {}`

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	`1`	`+//! Test stability levels for items formerly dependent on multiple unstable features.`
	`2`	`+//@ aux-build:mixed-levels.rs`
	`3`	`+`
	`4`	`+extern crate mixed_levels;`
	`5`	`+`
	`6`	`+const USE_STABLE: () = mixed_levels::const_stable_fn();`
	`7`	`+const USE_UNSTABLE: () = mixed_levels::const_unstable_fn();`
	`8`	+//~^ ERROR `const_unstable_fn` is not yet stable as a const fn
	`9`	`+`
	`10`	`+fn main() {`
	`11`	`+ mixed_levels::stable_mac!();`
	`12`	+ mixed_levels::unstable_mac!(); //~ ERROR use of unstable library feature `unstable_a` [E0658]
	`13`	`+}`

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	`1`	+error[E0658]: use of unstable library feature `unstable_a`
	`2`	`+ --> $DIR/mixed-levels.rs:12:5`
	`3`	`+ \|`
	`4`	`+LL \| mixed_levels::unstable_mac!();`
	`5`	`+ \| ^^^^^^^^^^^^^^^^^^^^^^^^^^`
	`6`	`+ \|`
	`7`	+ = help: add `#![feature(unstable_a)]` to the crate attributes to enable
	`8`	`+ = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date`
	`9`	`+`
	`10`	+error: `const_unstable_fn` is not yet stable as a const fn
	`11`	`+ --> $DIR/mixed-levels.rs:7:26`
	`12`	`+ \|`
	`13`	`+LL \| const USE_UNSTABLE: () = mixed_levels::const_unstable_fn();`
	`14`	`+ \| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^`
	`15`	`+ \|`
	`16`	+ = note: use of unstable library feature `unstable_c`
	`17`	+ = help: add `#![feature(unstable_c)]` to the crate attributes to enable
	`18`	`+ = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date`
	`19`	`+`
	`20`	`+error: aborting due to 2 previous errors`
	`21`	`+`
	`22`	+For more information about this error, try `rustc --explain E0658`.

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