Rollup of 4 pull requests#155990

Closed

jhpratt wants to merge 11 commits intorust-lang:mainfrom

jhpratt:rollup-axfgyts

Commits on Apr 19, 2026

Commits on Apr 27, 2026

Use `_mcount` as the mcount symbol name on RISC-V Linux GNU targets
lapla-cogito
committed

Commits on Apr 28, 2026

Add feature gate for view_types
scrabsha
committed

Commits on Apr 29, 2026

Parse view type syntax, mark it as unstable
scrabsha
committed

Commits on Apr 30, 2026

Invert dependency between `rustc_error_messages` and `rustc_ast*`.
nnethercote
committed
Eliminate `rustc_lint_defs`' dependency on `rustc_ast`.
nnethercote
committed
Rollup merge of #155237 - nnethercote:ast-errors-rejig, r=petrochenkov
jhpratt
authored
Rollup merge of #155853 - lapla-cogito:rv_mcount, r=mati865
jhpratt
authored
Rollup merge of #155939 - scrabsha:view-types/feature-gate, r=nikomatsakis
jhpratt
authored
Rollup merge of #155523 - ujjwalvishwakarma2006:reorg-tests-02, r=Kivooeo
jhpratt
authored