src: clean up stream_base.h and stream-base-inl.h
stream_base.h and stream_base-inl.h have always been a bit of a mess with regards to inlines, v8::
scopes, and more. This is the first step at a cleanup.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
commit message follows commit guidelines