llvm: Accept new LLVM lifetime format

[maurer]

In llvm/llvm-project#150248 LLVM removed the size parameter from the lifetime format. Tolerate not having that size parameter.

[rustbot]

r? @Mark-Simulacrum

rustbot has assigned @Mark-Simulacrum.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

Use r? to explicitly pick a reviewer

[maurer]

Please do not merge this immediately, we're still testing it through the LLVM integration CI.

@rustbot label +LLVM-main

[nikic]

You should also adjust the intrinsic emission in

rust/compiler/rustc_codegen_llvm/src/builder.rs

Lines 1679 to 1691 in de3efa7

	fn call_lifetime_intrinsic(&mut self, intrinsic: &'static str, ptr: &'ll Value, size: Size) {
	let size = size.bytes();
	if size == 0 {
	return;
	}
	if !self.cx().sess().emit_lifetime_markers() {
	return;
	}
	self.call_intrinsic(intrinsic, &[self.val_ty(ptr)], &[self.cx.const_u64(size), ptr]);
	}
	}