Partially stabilize LoongArch target features

Author: heiher

Diff for: crates/core_arch/src/lib.rs

@@ -72,8 +72,7 @@
     feature(
         stdarch_arm_feature_detection,
         stdarch_powerpc_feature_detection,
-        stdarch_s390x_feature_detection,
-        stdarch_loongarch_feature_detection
+        stdarch_s390x_feature_detection
     )
 )]
 

Diff for: crates/std_detect/src/detect/arch/loongarch.rs

@@ -16,20 +16,20 @@ features! {
     /// * `"lbt"`
     /// * `"lvz"`
     /// * `"ual"`
-    #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")]
-    @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] f: "f";
+    #[stable(feature = "stdarch_loongarch_feature", since = "1.88.0")]
+    @FEATURE: #[stable(feature = "stdarch_loongarch_feature", since = "1.88.0")] f: "f";
     /// F
-    @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] d: "d";
+    @FEATURE: #[stable(feature = "stdarch_loongarch_feature", since = "1.88.0")] d: "d";
     /// D
-    @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] frecipe: "frecipe";
+    @FEATURE: #[stable(feature = "stdarch_loongarch_feature", since = "1.88.0")] frecipe: "frecipe";
     /// Frecipe
-    @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] lsx: "lsx";
+    @FEATURE: #[stable(feature = "stdarch_loongarch_feature", since = "1.88.0")] lsx: "lsx";
     /// LSX
-    @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] lasx: "lasx";
+    @FEATURE: #[stable(feature = "stdarch_loongarch_feature", since = "1.88.0")] lasx: "lasx";
     /// LASX
-    @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] lbt: "lbt";
+    @FEATURE: #[stable(feature = "stdarch_loongarch_feature", since = "1.88.0")] lbt: "lbt";
     /// LBT
-    @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] lvz: "lvz";
+    @FEATURE: #[stable(feature = "stdarch_loongarch_feature", since = "1.88.0")] lvz: "lvz";
     /// LVZ
     @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] ual: "ual";
     /// UAL

Diff for: crates/std_detect/src/detect/arch/mod.rs

@@ -50,7 +50,7 @@ cfg_if! {
         #[unstable(feature = "stdarch_mips_feature_detection", issue = "111188")]
         pub use mips64::*;
     } else if #[cfg(target_arch = "loongarch64")] {
-        #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")]
+        #[stable(feature = "stdarch_loongarch_feature", since = "1.88.0")]
         pub use loongarch::*;
     } else if #[cfg(target_arch = "s390x")] {
         #[unstable(feature = "stdarch_s390x_feature_detection", issue = "135413")]