[flang] [llvm] [flang] Add HOSTNM runtime and lowering intrinsics implementation (PR #131910)

[Eugene Epshteyn via llvm-commits]

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@@ -0,0 +1,38 @@
+!RUN: %flang_fc1 -emit-hlfir %s -o - | FileCheck %s
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eugeneepshteyn wrote:

If this test is fine, I'll do a similar test for the function form of `hostnm()`.

https://github.com/llvm/llvm-project/pull/131910