[llvm-wrapper] adapt for LLVM API change

Adapt for the LLVM API changes from
llvm/llvm-project@721f975#diff-5a347903b8412ed1b1b1948c3fce47f9a6ff05dc70bfaeedb6d06b622e399d91.

Author: krasimirgg

compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp

@@ -627,7 +627,11 @@ LLVMRustOptimize(
   bool DebugPassManager = false;
 
   PassInstrumentationCallbacks PIC;
+#if LLVM_VERSION_LT(16, 0)
   StandardInstrumentations SI(DebugPassManager);
+#else
+  StandardInstrumentations SI(TheModule->getContext(), DebugPassManager);
+#endif
   SI.registerCallbacks(PIC);
 
   if (LlvmSelfProfiler){