9323028156
rustc_trait_selection: adopt let else in more places Continuation of #89933, #91018, #91481, #93046, #93590, #94011. I have extended my clippy lint to also recognize tuple passing and match statements. The diff caused by fixing it is way above 1 thousand lines. Thus, I split it up into multiple pull requests to make reviewing easier. This PR handles rustc_trait_selection.