Unrolled build for rust-lang#126536

Rollup merge of rust-lang#126536 - Rejyr:remove-unused-run-make-file, r=jieyouxu

Remove unused `llvm_readobj.rs` in `run-make-support`

`llvm_readobj.rs` seems unused from the migration to `llvm.rs` in rust-lang#125165.
Also, `llvm.rs` was missing the drop bombs (rust-lang#125752) in `llvm_readobj.rs`.

Part of rust-lang#121876.

r? `@jieyouxu`

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

@@ -4,18 +4,21 @@ use crate::{env_var, Command};
 
 /// Construct a new `llvm-readobj` invocation. This assumes that `llvm-readobj` is available
 /// at `$LLVM_BIN_DIR/llvm-readobj`.
+#[track_caller]
 pub fn llvm_readobj() -> LlvmReadobj {
     LlvmReadobj::new()
 }
 
 /// Construct a new `llvm-profdata` invocation. This assumes that `llvm-profdata` is available
 /// at `$LLVM_BIN_DIR/llvm-profdata`.
+#[track_caller]
 pub fn llvm_profdata() -> LlvmProfdata {
     LlvmProfdata::new()
 }
 
 /// Construct a new `llvm-filecheck` invocation. This assumes that `llvm-filecheck` is available
 /// at `$LLVM_FILECHECK`.
+#[track_caller]
 pub fn llvm_filecheck() -> LlvmFilecheck {
     LlvmFilecheck::new()
 }
@@ -55,6 +58,7 @@ pub fn llvm_bin_dir() -> PathBuf {
 impl LlvmReadobj {
     /// Construct a new `llvm-readobj` invocation. This assumes that `llvm-readobj` is available
     /// at `$LLVM_BIN_DIR/llvm-readobj`.
+    #[track_caller]
     pub fn new() -> Self {
         let llvm_readobj = llvm_bin_dir().join("llvm-readobj");
         let cmd = Command::new(llvm_readobj);
@@ -77,6 +81,7 @@ impl LlvmReadobj {
 impl LlvmProfdata {
     /// Construct a new `llvm-profdata` invocation. This assumes that `llvm-profdata` is available
     /// at `$LLVM_BIN_DIR/llvm-profdata`.
+    #[track_caller]
     pub fn new() -> Self {
         let llvm_profdata = llvm_bin_dir().join("llvm-profdata");
         let cmd = Command::new(llvm_profdata);
@@ -107,6 +112,7 @@ impl LlvmProfdata {
 impl LlvmFilecheck {
     /// Construct a new `llvm-filecheck` invocation. This assumes that `llvm-filecheck` is available
     /// at `$LLVM_FILECHECK`.
+    #[track_caller]
     pub fn new() -> Self {
         let llvm_filecheck = env_var("LLVM_FILECHECK");
         let cmd = Command::new(llvm_filecheck);