This allows us to check two things:
- presence of line markers (haven't been checked by old
GradleTestRunConfigurationTests, though could've been checked by
LineMarkerTests)
- some properties of run configurations which will be created from those
line markers
Old GradleTestRunConfigurationTest have been renamed to
GradleTestRunConfigurationCustomTest and slightly modified to be able
to re-use the same testdata if necessary.
Dmitry Savvinov
b34f091fa4