use qtconcurrent instead of qtgui in test code

this works with -no-gui, and doesn't interfere with our upcoming ANGLE
hackery.

Change-Id: I2985cc0acd1fbf185b8967ffe58606b1b7dd9d1e
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
don't process ANGLE and zlib headers like real qt modules

we run syncqt on them only to get normal forwarding headers and the
headers.pri file. the module master include header and the module
version header are useless, and scanning for qt class names just wastes
time.

Change-Id: I58e8d1eb36cea5c31cbd46ce673438316d1963dc
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
allow modules to extend their MODULE_{,PRIVATE_}INCLUDES

Change-Id: I5e401edbe891846579cf6d9ff84427d16783923b
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
put ANGLE includes in a QtANGLE subdir

otherwise even non-angle builds with pre-generated headers will get them
into their include path, which is Not Good (tm).

Change-Id: Ie98354297baf3564ef82b3d4a32e5763e625b8f2
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
update some comments relating to forwarding module pri files

Change-Id: I3486f949fee2ac977e3cde669188790e5f4b3167
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
use correct variable for library base path

Change-Id: I6d621db2c4d5365a9c9a7284026b464e663a4cc6
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
reshuffle path setup

rename MODULE_PROFILE_DIR to MODULE_BASE_INDIR.
force MODULE_BASE_OUTDIR to be always the shadow of the above.
rename MODULE_BASE_DIR to MODULE_SYNCQT_DIR (the former is still
recognized for backwards compat with webkit).

the idea behind these changes is making the variable names and override
possibilities reflect their actual use.

Change-Id: Ica4062d7231a0ce13241670e0d0f43e6b1b97160
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
redo include path logic for pre-generated headers

make the include dir in the source tree the "main" include path, as
that's where the majority of the headers is. then selectively add the
shadowed dirs.

Change-Id: I03ad13cfcf77175c141b94d41b1221740d851faf
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>