scope.d

                       | MODULE                       |  push scope Module
void e()               |   FUNC e                     |    insert e @ line 2 col 3
{                      |     BLOCK                    |    push scope e
    i32 a;             |       VAR i32 a              |      push scope Block
    i32 b;             |       VAR i32 b              |        insert a @ line 4 col 4
    i32 c;             |       VAR i32 c              |        insert b @ line 5 col 4
                       |       FUNC f                 |        insert c @ line 6 col 4
    void f() {         |         BLOCK                |        insert f @ line 8 col 4
        i32 a;         |           VAR i32 a          |        push scope f
        i32 b;         |           VAR i32 b          |          push scope Block
        i32 c;         |           VAR i32 c          |            insert a @ line 9 col 5
        a = b + c;     |           BINOP EQUAL        |            insert b @ line 10 col 5
    }                  |             VAR_USE a        |            insert c @ line 11 col 5
                       |             BINOP PLUS       |            lookup a @ line 9 col 5
    void g() {         |               VAR_USE b      |            lookup b @ line 10 col 5
        i32 a;         |               VAR_USE c      |            lookup c @ line 11 col 5
        i32 b;         |       FUNC g                 |          pop scope Block
                       |         BLOCK                |        pop scope f
        void h() {     |           VAR i32 a          |        insert g @ line 15 col 4
            i32 c;     |           VAR i32 b          |        push scope g
            i32 d;     |           FUNC h             |          push scope Block
            c = a + d; |             BLOCK            |            insert a @ line 16 col 5
        }              |               VAR i32 c      |            insert b @ line 17 col 5
                       |               VAR i32 d      |            insert h @ line 19 col 5
        void i() {     |               BINOP EQUAL    |            push scope h
            i32 b;     |                 VAR_USE c    |              push scope Block
            i32 d;     |                 BINOP PLUS   |                insert c @ line 20 col 6
            b = a + c; |                   VAR_USE a  |                insert d @ line 21 col 6
        }              |                   VAR_USE d  |                lookup c @ line 20 col 6
                       |           FUNC i             |                lookup a @ line 16 col 5
        b = a + c;     |             BLOCK            |                lookup d @ line 21 col 6
    }                  |               VAR i32 b      |              pop scope Block
                       |               VAR i32 d      |            pop scope h
    a = b + c;         |               BINOP EQUAL    |            insert i @ line 25 col 5
}                      |                 VAR_USE b    |            push scope i
                       |                 BINOP PLUS   |              push scope Block
                       |                   VAR_USE a  |                insert b @ line 26 col 6
                       |                   VAR_USE c  |                insert d @ line 27 col 6
                       |           BINOP EQUAL        |                lookup b @ line 26 col 6
                       |             VAR_USE b        |                lookup a @ line 16 col 5
                       |             BINOP PLUS       |                lookup c @ line 6 col 4
                       |               VAR_USE a      |              pop scope Block
                       |               VAR_USE c      |            pop scope i
                       |       BINOP EQUAL            |            lookup b @ line 17 col 5
                       |         VAR_USE a            |            lookup a @ line 16 col 5
                       |         BINOP PLUS           |            lookup c @ line 6 col 4
                       |           VAR_USE b          |          pop scope Block
                       |           VAR_USE c          |        pop scope g
                       |                              |        lookup a @ line 4 col 4
                       |                              |        lookup b @ line 5 col 4
                       |                              |        lookup c @ line 6 col 4
                       |                              |      pop scope Block
                       |                              |    pop scope e
                       |                              |  pop scope Module