Fix stable feature names in tests

Author: dtolnay

tests/rustdoc/deprecated-future-staged-api.rs

@@ -1,18 +1,18 @@
 #![feature(staged_api)]
-#![stable(feature = "deprecated-future-staged-api", since = "1.0.0")]
+#![stable(feature = "deprecated_future_staged_api", since = "1.0.0")]
 
 // @has deprecated_future_staged_api/index.html '//*[@class="stab deprecated"]' \
 //      'Deprecation planned'
 // @has deprecated_future_staged_api/struct.S1.html '//*[@class="stab deprecated"]' \
 //      'Deprecating in 99.99.99: effectively never'
 #[deprecated(since = "99.99.99", note = "effectively never")]
-#[stable(feature = "deprecated-future-staged-api", since = "1.0.0")]
+#[stable(feature = "deprecated_future_staged_api", since = "1.0.0")]
 pub struct S1;
 
 // @has deprecated_future_staged_api/index.html '//*[@class="stab deprecated"]' \
 //      'Deprecation planned'
 // @has deprecated_future_staged_api/struct.S2.html '//*[@class="stab deprecated"]' \
 //      'Deprecating in a future Rust version: literally never'
 #[deprecated(since = "TBD", note = "literally never")]
-#[stable(feature = "deprecated-future-staged-api", since = "1.0.0")]
+#[stable(feature = "deprecated_future_staged_api", since = "1.0.0")]
 pub struct S2;

tests/ui/deprecation/staged-deprecation-in-future.rs

@@ -2,14 +2,14 @@
 
 #![feature(staged_api)]
 
-#![stable(feature = "rustc_deprecation-in-future-test", since = "1.0.0")]
+#![stable(feature = "rustc_deprecation_in_future_test", since = "1.0.0")]
 
 #[deprecated(since = "99.99.99", note = "effectively never")]
-#[stable(feature = "rustc_deprecation-in-future-test", since = "1.0.0")]
+#[stable(feature = "rustc_deprecation_in_future_test", since = "1.0.0")]
 pub struct S1;
 
 #[deprecated(since = "TBD", note = "literally never")]
-#[stable(feature = "rustc_deprecation-in-future-test", since = "1.0.0")]
+#[stable(feature = "rustc_deprecation_in_future_test", since = "1.0.0")]
 pub struct S2;
 
 fn main() {