Windows build is broken

[catamorphism]

The last WIndows build (of 172fb17 ) failed with:

compile_and_link: i686-pc-mingw32/test/run_pass_stage2_driver-i686-pc-mingw32.exe 

tmp/run_pass_stage2_driver.rs tmp/run_pass_stage2_driver.rs:51:4: 51:17 error: this function takes 1 parameter 
but 0 parameters were supplied tmp/run_pass_stage2_driver.rs:51 t_21::main(); 

and a bunch of other similar errors. I don't know that this run_pass_stage_2_driver.rs file is -- it seems to be Windows-specific. make check passes on my Mac. This seems unrelated to the last change I pushed.

[brson]

This is a problem with the combine-tests.py script used by check-fast not understanding the changing vector syntax. I pushed a fix.

[catamorphism]

Thanks Brian!