[clang] [clang-tools-extra] [lldb] [clang] Remove intrusive reference count from `DiagnosticOptions` (PR #139584)

[Jan Svoboda via cfe-commits]

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@@ -837,6 +838,7 @@ class ASTUnit {
   static std::unique_ptr<ASTUnit> LoadFromCommandLine(
       const char **ArgBegin, const char **ArgEnd,
       std::shared_ptr<PCHContainerOperations> PCHContainerOps,
+      std::shared_ptr<DiagnosticOptions> DiagOpts,
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jansvoboda11 wrote:

Explained above.

https://github.com/llvm/llvm-project/pull/139584