Add #[inline] to the runtime const_panic path

Author: saethlin

library/core/src/panic.rs

@@ -169,7 +169,7 @@ pub macro const_panic {
                 #[noinline]
                 if const #[track_caller] #[inline] { // Inline this, to prevent codegen
                     $crate::panic!($const_msg)
-                } else #[track_caller] { // Do not inline this, it makes perf worse
+                } else #[track_caller] #[inline] {
                     $crate::panic!($runtime_msg)
                 }
             )