b "this is line 1 of tests2b.tst"
#mark THISBIT_BEGIN
b "this is line 3 of tests2b.tst"
#include "t/tests2c.tst"
b "this is line 5 of tests2b.tst"
#include "t/tests2c.tst"
b "this is line 7 of tests2b.tst"
#mark THISBIT_END
b "this is line 9 of tests2b.tst"