Sync grammar with spec
Sync grammar with spec

- Remove rule LabeledExpr
- Add rule CurlySuffixExpr

zig-lang/zig,andrewrk/zig,raulgrell/zig,andrewrk/zig,raulgrell/zig,raulgrell/zig,zig-lang/zig,raulgrell/zig,zig-lang/zig,raulgrell/zig