[lld] [lld] Use llvm::less_first (NFC) (PR #136397)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-lld

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/136397.diff


1 Files Affected:

- (modified) lld/MachO/MapFile.cpp (+1-3) 


``````````diff
diff --git a/lld/MachO/MapFile.cpp b/lld/MachO/MapFile.cpp
index 8919c8d2f9b9c..f3e221a700b14 100644
--- a/lld/MachO/MapFile.cpp
+++ b/lld/MachO/MapFile.cpp
@@ -116,9 +116,7 @@ static MapInfo gatherMapInfo() {
   // cstrings are not stored in sorted order in their OutputSections, so we sort
   // them here.
   for (auto &liveCStrings : info.liveCStringsForSection)
-    parallelSort(liveCStrings.second, [](const auto &p1, const auto &p2) {
-      return p1.first < p2.first;
-    });
+    parallelSort(liveCStrings.second, llvm::less_first());
   return info;
 }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/136397