tests2: Build executables as well
tests2: Build executables as well

The individual tests in tests2 are checked only with -run.  Build
(and check) executables as well, to test also building executables.

leeduhem/tinycc,code4game/tinycc,andrewchambers/tccmirror,avih/tinycc,mingodad/tinycc,rchandramouli/tinycc,gfwilliams/tinycc,fstudio/tinycc,alfonsokim/tinycc,metaeducation/tcc,rchandramouli/tinycc,rchandramouli/tinycc,avih/tinycc,seyko2/tinycc,mirror/tinycc,andrewchambers/tccmirror,leeduhem/tinycc,run4flat/tinycc,metaeducation/tcc,andreiw/tinycc,fstudio/tinycc,mirror/tinycc,mingodad/tinycc,andrewchambers/tccmirror,mirror/tinycc,rchandramouli/tinycc,mirror/tinycc,leeduhem/tinycc,code4game/tinycc,metaeducation/tcc,seyko2/tinycc,andreiw/tinycc,mingodad/tinycc,leeduhem/tinycc,fstudio/tinycc,fstudio/tinycc,seyko2/tinycc,seyko2/tinycc,andreiw/tinycc,metaeducation/tcc,gfwilliams/tinycc,alfonsokim/tinycc,run4flat/tinycc,avih/tinycc,metaeducation/tcc,alfonsokim/tinycc,andrewchambers/tccmirror,mingodad/tinycc,fstudio/tinycc,avih/tinycc,run4flat/tinycc,run4flat/tinycc,leeduhem/tinycc,alfonsokim/tinycc,andrewchambers/tccmirror,gfwilliams/tinycc,seyko2/tinycc,run4flat/tinycc,rchandramouli/tinycc,gfwilliams/tinycc,gfwilliams/tinycc,code4game/tinycc,alfonsokim/tinycc