Rollup merge of #124335 - ChrisDenton:stabilize-absolute, r=dtolnay

Stabilize `std::path::absolute`

FCP complete in https://github.com/rust-lang/rust/issues/92750#issuecomment-2075046985

compiler/rustc_fs_util/src/lib.rs

@@ -1,5 +1,3 @@
-#![feature(absolute_path)]
-
 use std::ffi::CString;
 use std::fs;
 use std::io;

library/std/src/path.rs

@@ -3332,7 +3332,6 @@ fn description(&self) -> &str {
 /// ## Posix paths
 ///
 /// ```
-/// #![feature(absolute_path)]
 /// # #[cfg(unix)]
 /// fn main() -> std::io::Result<()> {
 ///   use std::path::{self, Path};
@@ -3357,7 +3356,6 @@ fn description(&self) -> &str {
 /// ## Windows paths
 ///
 /// ```
-/// #![feature(absolute_path)]
 /// # #[cfg(windows)]
 /// fn main() -> std::io::Result<()> {
 ///   use std::path::{self, Path};
@@ -3382,7 +3380,7 @@ fn description(&self) -> &str {
 ///
 /// [posix-semantics]: https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap04.html#tag_04_13
 /// [windows-path]: https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getfullpathnamew
-#[unstable(feature = "absolute_path", issue = "92750")]
+#[stable(feature = "absolute_path", since = "CURRENT_RUSTC_VERSION")]
 pub fn absolute<P: AsRef<Path>>(path: P) -> io::Result<PathBuf> {
     let path = path.as_ref();
     if path.as_os_str().is_empty() {

src/tools/miri/src/lib.rs

@@ -12,7 +12,6 @@
 #![feature(let_chains)]
 #![feature(lint_reasons)]
 #![feature(trait_upcasting)]
-#![feature(absolute_path)]
 // Configure clippy and other lints
 #![allow(
     clippy::collapsible_else_if,

src/tools/miri/tests/pass/shims/path.rs

@@ -1,5 +1,4 @@
 //@compile-flags: -Zmiri-disable-isolation
-#![feature(absolute_path)]
 use std::path::{absolute, Path};
 
 #[track_caller]