Accommodate upstream PassPlugin rename

Author: DKLoehr

compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp

@@ -23,7 +23,11 @@
 #include "llvm/MC/TargetRegistry.h"
 #include "llvm/Object/ObjectFile.h"
 #include "llvm/Passes/PassBuilder.h"
+#if LLVM_VERSION_GE(22, 0)
+#include "llvm/Plugins/PassPlugin.h"
+#else
 #include "llvm/Passes/PassPlugin.h"
+#endif
 #include "llvm/Passes/StandardInstrumentations.h"
 #include "llvm/Support/CBindingWrapping.h"
 #include "llvm/Support/FileSystem.h"