Rollup merge of #127359 - GuillaumeGomez:improve-run-make-llvm-ident-code, r=jieyouxu

Improve run make llvm ident code

I took the commits that are not blocking #127237.

r? `@Kobzol`

Author: GuillaumeGomez

src/tools/run-make-support/src/command.rs

@@ -75,11 +75,12 @@ impl Command {
     /// Generic command arguments provider. Prefer specific helper methods if possible.
     /// Note that for some executables, arguments might be platform specific. For C/C++
     /// compilers, arguments might be platform *and* compiler specific.
-    pub fn args<S>(&mut self, args: &[S]) -> &mut Self
+    pub fn args<S, V>(&mut self, args: V) -> &mut Self
     where
         S: AsRef<ffi::OsStr>,
+        V: AsRef<[S]>,
     {
-        self.cmd.args(args);
+        self.cmd.args(args.as_ref());
         self
     }
 

tests/run-make/llvm-ident/rmake.rs

@@ -28,7 +28,7 @@ fn main() {
             files.push(path.to_path_buf());
         }
     });
-    cmd(llvm_bin_dir().join("llvm-dis")).args(&files).run();
+    cmd(llvm_bin_dir().join("llvm-dis")).args(files).run();
 
     // Check LLVM IR files (including temporary outputs) have `!llvm.ident`
     // named metadata, reusing the related codegen test.