* task.c (GOMP_taskgroup_end): If taskgroup->num_children
is not zero, but taskgroup->children is NULL and there are
any task->children, schedule those instead of waiting.
* testsuite/libgomp.c/depend-6.c: New test.
* testsuite/libgomp.c/depend-7.c: New test.
* testsuite/libgomp.c/depend-8.c: New test.
* testsuite/libgomp.c/depend-9.c: New test.
* testsuite/libgomp.c/depend-10.c: New test.
From-SVN: r213592
