Distinguish OP_R_NORMAL and OP_R_RETURN.
MODIFY
src/codedump.c
src/codedump.c
@@ -239,6 +239,7 @@ codedump(mrb_state *mrb, mrb_irep *irep)
printf("OP_RETURN\tR%d", GETARG_A(c));
switch (GETARG_B(c)) {
case OP_R_NORMAL:
+ printf("\tnormal\t"); break;
case OP_R_RETURN:
printf("\treturn\t"); break;
case OP_R_BREAK:

Distinguish OP_R_NORMAL and OP_R_RETURN.