ty::print::Printer
&mut self
self
This simplifies the code by removing all the `self` assignments and makes the flow of data clearer - always into the printer. Especially in v0 mangling, which already used `&mut self` in some places, it gets a lot more uniform.
ACTIVE_FEATURES
UNSTABLE_FEATURES
noop_method_call
rustc_lint_defs::lint_array