Consider changing the non_snake_case lint to skip names of #[no_mangle] extern functions

[sfackler]

Since the function is tagged #[no_mangle] the exact name presumably has to exactly match something that another system is expecting, which may not be snake case. For example, JNI bindings will look something like

#[no_mangle]
unsafe extern "C" fn Java_package_name_ClassName_methodName(...) { ... }

[steveklabnik]

Modifying lints requires an RFC now, as it can impact a LOT of code.

[steveklabnik]

(By modifying I mean "major changes" not bugfixes)

[aturon]

Hm, while I think new lints definitely want an RFC, modifications to existing ones can probably go through the lang team's nomination process, leading to either an immediate decision or request for RFC.

[steveklabnik]

I'm fine with that, just following (what I thought was) procedure. 😄