Handle `macro_rules!` tokens consistently across crates#73569

Merged

bors merged 3 commits intorust-lang:masterfrom

Aaron1011:fix/macro-rules-group

Jul 2, 2020

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