Rollup merge of #49532 - Phlosioneer:32556-rustdoc-regression-test, r=GuillaumeGomez
Rollup merge of #49532 - Phlosioneer:32556-rustdoc-regression-test, r=GuillaumeGomez

Add test for rustdoc ignore test

This will check for regression on issue #32556

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