[clang] [clang][flang][windows] Prefer user-provided library paths (-L) (PR #90758)

[Andrzej Warzyński via cfe-commits]

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@@ -0,0 +1,8 @@
+! REQUIRES: system-windows
+!
+! RUN: %clang --driver-mode=flang -### %s -Ltest 2>&1 | FileCheck %s
+!
+! Test that user provided paths come before the Flang runtimes and compiler-rt
+! CHECK: "-libpath:test"
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banach-space wrote:

Wondering how to check that there's no `-libapth` before  `-libpath:test` 🤔 

https://github.com/llvm/llvm-project/pull/90758