Remove references to `OS_HANDLE` in docs

Internals & Design
1

In the official docs, there is a function whose input type is defined as OS_HANDLE. This type is not mentioned anywhere else in the docs. Furthermore, it is not exported, and help about it says:

help?> Base.OS_HANDLE
  RawFD

  Primitive type which wraps the native OS file descriptor. RawFDs can be passed to methods like stat to discover information about
  the underlying file, and can also be used to open streams, with the RawFD describing the OS file backing the stream.

Which matches exactly to RawFD help:

help?> RawFD
search: RawFD

  RawFD

  Primitive type which wraps the native OS file descriptor. RawFDs can be passed to methods like stat to discover information about
  the underlying file, and can also be used to open streams, with the RawFD describing the OS file backing the stream.

Should every reference to OS_HANLDE be removed?

2

https://github.com/JuliaLang/julia/blob/bf534986350a991e4a1b29126de0342ffd76205e/base/stream.jl#L363

3

Yeah, and? What’s its use? It is in Base, and it shows on the exported documentation, so it should be explained somewhere

4

They are not the same thing

5

I agree with you they aren’t. But shouldn’t this difference be documented anywhere?

Furthermore, shouldn’t OS_HANDLE be documented itself? I, for one, don’t knw what it is, and it appears in the docs, but there is no way to know it from there.