rust-bindgen: `_Float16 _Complex` leads to panic (such as when including `immintrin.h` on clang 16)

Input C/C++ Header

/* input.h */
_Float16 _Complex h;

Bindgen Invocation

$ bindgen input.h

Actual Results

panicked at 'Non floating-type complex? Type(_Complex _Float16, kind: Complex, cconv: 100, decl: Cursor( kind: NoDeclFound, loc: builtin definitions, usr: None), canon: Cursor( kind: NoDeclFound, loc: builtin definitions, usr: None)), Type(_Float16, kind: Float16, cconv: 100, decl: Cursor( kind: NoDeclFound, loc: builtin definitions, usr: None), canon: Cursor( kind: NoDeclFound, loc: builtin definitions, usr: None))', J:\Compilers\Rust\.cargo\registry\src\github.com-1ecc6299db9ec823\bindgen-0.65.1\ir\context.rs:1994:26

Expected Results

Command completes without error.

Synopsis

Ran into this when using a header from a project that includes immintrin.h, which on clang 16 always seems to include avx512fp16intrin.h and avx512vlfp16intrin.h, which in turn have construct _Float16 _Complex, which currently bindgen cannot handle.

For example, running bindgen on SDL2’s SDL.h which includes immintrin.h through SDL_cpuinfo.h results in the above error.