Unrolled build for #141931

Rollup merge of #141931 - ArtemIsmagilov:issue-141849_2, r=nnethercote

Deconstruct values in the THIR visitor

I continue to add deconstruction for task #141849
The changes concern a more complex part of the task `compiler/rustc_hir/src/intravisit.rs`
r? `@nnethercote`

Author: rust-timer