core: now bh_instr_dependency() returns false when given BH_NONE instructions
core: now bh_instr_dependency() returns false when given BH_NONE instructions

bh107/bohrium,madsbk/bohrium,madsbk/bohrium,madsbk/bohrium,bh107/bohrium,bh107/bohrium,bh107/bohrium,madsbk/bohrium