Rollup merge of #107764 - maurer:llvm-16, r=cuviper

llvm-16: Use Triple.h from new header location.

LLVM 16 has moved Triple.h from ADT and into TargetParser.

LLVM [landed a commit](llvm/llvm-project@62c7f03) this morning moving the header. This change should make rustc continue to build against LLVM main.

compiler/rustc_llvm/llvm-wrapper/LLVMWrapper.h

@@ -4,7 +4,6 @@
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseSet.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/Triple.h"
 #include "llvm/Analysis/Lint.h"
 #include "llvm/Analysis/Passes.h"
 #include "llvm/IR/IRBuilder.h"
@@ -44,6 +43,12 @@
 #include "llvm/IR/IRPrintingPasses.h"
 #include "llvm/Linker/Linker.h"
 
+#if LLVM_VERSION_GE(16, 0)
+#include "llvm/TargetParser/Triple.h"
+#else
+#include "llvm/ADT/Triple.h"
+#endif
+
 extern "C" void LLVMRustSetLastError(const char *);
 
 enum class LLVMRustResult { Success, Failure };