also use _vala_array_free to release string arrays as g_strfreev cannot

also use _vala_array_free to release string arrays as g_strfreev cannot

2007-08-19  Mathias Hasselmann  <mathias.hasselmann@gmx.de>

	* gobject/valacodegenerator.vala: also use _vala_array_free to
	release string arrays as g_strfreev cannot handle Vala's sized
	arrays, which have a _length variable, but no NULL sentinel.
	* gobject/valacodegeneratorsourcefile.vala: enhance _vala_array_free
	to handle unsized (NULL sentinel terminated) arrays.
	* tests/test-022.*: test behaviour of _vala_array_free. currently
	fails because Vala forgets to release old element members when
	assigning a new value.

svn path=/trunk/; revision=483