Rollup merge of #73963 - hellow554:unsafe_path, r=Mark-Simulacrum
Rollup merge of #73963 - hellow554:unsafe_path, r=Mark-Simulacrum

deny(unsafe_op_in_unsafe_fn) in libstd/path.rs

The libstd/path.rs part of #73904 . Wraps the two calls to an unsafe fn Initializer::nop() in an unsafe block.

graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust