[gen.rs] remove to_intern_str
[gen.rs] remove to_intern_str

alexander255/rust-bindgen,alexander255/rust-bindgen,Twinklebear/rust-bindgen,bsteinb/rust-bindgen,bsteinb/rust-bindgen,alexander255/rust-bindgen,Twinklebear/rust-bindgen,bsteinb/rust-bindgen,Twinklebear/rust-bindgen,Twinklebear/rust-bindgen