SCM_VM_RUNTIME_FLAG_CLEAR  873 src/error.c            SCM_VM_RUNTIME_FLAG_CLEAR(vm, SCM_ERROR_BEING_REPORTED);
SCM_VM_RUNTIME_FLAG_CLEAR  876 src/error.c        SCM_VM_RUNTIME_FLAG_CLEAR(vm, SCM_ERROR_BEING_REPORTED);
SCM_VM_RUNTIME_FLAG_CLEAR 3284 src/vm.c           SCM_VM_RUNTIME_FLAG_CLEAR(vm, SCM_ERROR_BEING_HANDLED);
SCM_VM_RUNTIME_FLAG_CLEAR 3320 src/vm.c           SCM_VM_RUNTIME_FLAG_CLEAR(vm, SCM_ERROR_BEING_REPORTED);