Rollup merge of #106064 - lukas-code:outlives-macro, r=cjgillot

Partially fix `explicit_outlives_requirements` lint in macros

Show the suggestion if and only if the bounds are from the same source context.

fixes https://github.com/rust-lang/rust/issues/106044
fixes https://github.com/rust-lang/rust/issues/106063

diff --cc compiler/rustc_ast_lowering/src/item.rs
Simple merge

diff --cc compiler/rustc_ast_lowering/src/lib.rs
Simple merge