Auto merge of #52568 - oli-obk:span_bug_error, r=varkor

Fix loop label resolution around constants

And make `delay_span_bug` a little more helpful

r? @varkor

fixes #52442
fixes #52443

diff --cc src/librustc/hir/lowering.rs
Simple merge

diff --cc src/librustc_resolve/lib.rs
Simple merge

diff --cc src/librustc_typeck/check/mod.rs
Simple merge

diff --cc src/librustdoc/core.rs
Simple merge