[lld] [lld][ELF] Extend profile guided function ordering to ELF binaries (PR #117514)

[Fangrui Song via llvm-commits]

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@@ -0,0 +1,336 @@
+# REQUIRES: aarch64
+
+# RUN: rm -rf %t && split-file %s %t
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MaskRay wrote:

append `&& cd %t` to avoid `%t` complexity below.

https://github.com/llvm/llvm-project/pull/117514