Rollup merge of #155936 - GuillaumeGomez:small-cleanup, r=JonathanBrouwer,Urgau

Rename `SharedContext::emit_dyn_lint*` into `emit_lint*`

Part of rust-lang/rust#153099.

Very small cleanup while I figure out how to have a `Diagnostic` argument instead of the current closures.

r? @JonathanBrouwer

Author: JonathanBrouwer