[clang][DebugInfo] Disable VTable debug info (#130255) on COFF platforms (#151684) On COFF platform, d1b0cbff806b50d399826e79b9a53e4726c21302 generates a debug info linked with VTable regardless definition is present or not. If that VTable ends up implicitly dllimported from another DLL, ld.bfd produces a runtime pseudo relocation for it (LLD doesn't, since d17db6066d2524856fab493dd894f8396e896bc7). If the debug section is stripped, the runtime pseudo relocation points to memory space outside of the module, causing an access violation. At this moment, we simply disable VTable debug info on COFF platform to avoid this problem.
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