[LLVM][Unittest] disable plugin tests for `LLVM_BUILD_LLVM_DYLIB` on WIN32#168200

kikairoya wants to merge 1 commit intollvm:mainllvm/llvm-project:mainfrom

kikairoya:win32-unittest-builddylibkikairoya/llvm-project:win32-unittest-builddylibCopy head branch name to clipboard