Handle `macro_rules!` tokens consistently across crates#73569

Merged

bors merged 3 commits intorust-lang:masterfrom Aaron1011:fix/macro-rules-group

Jul 2, 2020

+395-56

Commits on Jul 1, 2020

Insert NoDelim groups around nonterminals when lowering macro_rules
Aaron1011
committed
Don't print additional spaces when pretty-printing NoDelim groups
Aaron1011
committed
Handle None-delimited groups when parsing macro_rules! macro
Aaron1011
committed