Stabilize Literal::c_string

Author: slanterns

library/proc_macro/src/lib.rs

@@ -1374,7 +1374,7 @@ impl Literal {
     }
 
     /// C string literal.
-    #[unstable(feature = "proc_macro_c_str_literals", issue = "119750")]
+    #[stable(feature = "proc_macro_c_str_literals", since = "CURRENT_RUSTC_VERSION")]
     pub fn c_string(string: &CStr) -> Literal {
         let string = string.to_bytes().escape_ascii().to_string();
         Literal::new(bridge::LitKind::CStr, &string, None)

tests/ui/feature-gates/feature-gate-proc_macro_c_str_literals.rs

@@ -5,7 +5,6 @@
 #![crate_type = "proc-macro"]
 #![crate_name = "proc_macro_api_tests"]
 #![feature(proc_macro_span)]
-#![feature(proc_macro_c_str_literals)]
 #![deny(dead_code)] // catch if a test function is never called
 
 extern crate proc_macro;