This comes with a terminology change. All linkage-symbols are 'extern'
now, including rust syms in other crates. Some extern ABIs are
merely "foreign". The term "native" is retired, not clear/useful.
What was "crust" is now "extern" applied to a _definition_. This
is a bit of an overloading, but should be unambiguous: it means
that the definition should be made available to some non-rust ABI.
seems to hold up pretty well.
uv::hl API is affected.. had to do work on tests and std::timer code that
leverages the global loop/high_level_loop API.
see test_stress_gl_uv_global_loop_high_level_global_timer for a stress
example.. it takes a while to run, but it exits cleanly (something I could
never accomplish with earlier iterations of the global loop)
- moved global loop tests, as well.. will add tests in uv_hl that encompass
rolling your own high_level_loop via uv::hl::run_high_level_loop()
- also whitespace cleanups and misc warning cleanup..
- doesn't work on 32bit linux
