[clang] Reapply "[Driver][ROCm][OpenMP] Fix default ockl linking for OpenMP."… (PR #126671)

[Matt Arsenault via cfe-commits]

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@@ -1014,17 +1014,20 @@ RocmInstallationDetector::getCommonBitcodeLibs(
     bool isOpenMP = false) const {
   llvm::SmallVector<ToolChain::BitCodeLibraryInfo, 12> BCLibs;
 
-  auto GPUSanEnabled = [GPUSan]() { return std::get<bool>(GPUSan); };
+  // GPU Sanitizer currently only supports ASan and is enabled through host
+  // ASan.
+  auto GPUSanEnabled = [GPUSan]() {
+    return std::get<bool>(GPUSan) &&
+           std::get<const SanitizerArgs>(GPUSan).needsAsanRt();
+  };
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arsenm wrote:

Why is this using a lambda and capture for a simple and? I'm also surprised `get<bool>` works instead of `get<0>`. 

https://github.com/llvm/llvm-project/pull/126671