proc_macro: implement `TokenTree`, `TokenKind`, hygienic `quote!`, and other API#40939

Merged

bors merged 13 commits intorust-lang:masterfrom jseyfried:proc_macro_api

Jul 6, 2017

+1,562-842

Commits on Jun 26, 2017

Simplify hygiene::Mark application, and
jseyfried
committed
Clean up tokenstream::Cursor and proc_macro.
jseyfried
committed
Implement quote! and other proc_macro API.
jseyfried
committed
Add LazyTokenStream.
jseyfried
committed
Add exmaple/test for quote! hygiene.
jseyfried
committed
Test compound tokens.
jseyfried
committed
Address review comments.
jseyfried
committed
Fix a semantic merge conflict

alexcrichton
authored and
jseyfried
committed
Update UI test with proc_macro changes

alexcrichton
authored and
jseyfried
committed
Revert a few changes

alexcrichton
authored and
jseyfried
committed
Update and fix a few tests

alexcrichton
authored and
jseyfried
committed

Commits on Jul 5, 2017