Auto merge of #66952 - 0dvictor:print, r=rkruppe

Use Module::print() instead of a PrintModulePass

llvm::Module has a print() method. It is unnecessary to create a pass just for the purpose of printing LLVM IR.

diff --cc src/librustc_codegen_llvm/back/write.rs
Simple merge

diff --cc src/librustc_codegen_llvm/llvm/ffi.rs
Simple merge

diff --cc src/rustllvm/PassWrapper.cpp
Simple merge