charts: Follow Qt's already-existent -developer-build option....
charts: Follow Qt's already-existent -developer-build option.
This means that rebuilding the entirety of Qt with -developer-build will get us
all autotests.
Furthermore, it fixes the situation on OS X where a debug_and_release build
wouldn't actually fully link.
In addition, we clean up the tests that were stubbed when internals aren't
available to just not build/run them at all by checking private_tests.
Change-Id: I5701559cd91df842f78346d7d6ad9295bee587d0
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>