[llvm] [LLVM] Fix VisualStudio detection (PR #212498)

[via llvm-commits]

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@@ -675,6 +675,12 @@ bool llvm::findVCToolChainViaSetupConfig(
   ISetupInstancePtr NewestInstance;
   std::optional<uint64_t> NewestVersionNum;
   do {
+    bstr_t NameString;
+    HR = Instance->GetInstallationName(NameString.GetAddress());
+    if (FAILED(HR))
+      continue;
+    if (std::wstring_view(NameString).find(L"VisualStudio") != 0)
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enginelesscc wrote:

I do not have the time at the moment to look into the `ISetupInstance2::GetPackages()` idea.
For now though, only accepting 'VisualStudio*' is enough to fix the issue in the minimal way

https://github.com/llvm/llvm-project/pull/212498