[tests] nomalized use of -load-module option

tests/builtins/Longinit_sequencer.i

tests/callgraph/function_pointer.i

tests/cil/mkBinOp.i

tests/journal/intra.i

tests/misc/copy_kf.i

tests/misc/copy_machdep.i

tests/misc/exception.i

tests/misc/global_decl_loc.i

tests/misc/my_visitor.c

tests/saveload/basic.i

tests/saveload/multi_project.i

tests/slicing/adpcm.c

tests/slicing/combine.i

tests/slicing/ex_spec_interproc.i

tests/slicing/horwitz.i

tests/slicing/mark_all_slices.i

tests/slicing/merge.i

tests/slicing/min_call.i

tests/slicing/select_by_annot.i

tests/slicing/select_simple.i