== test ==
fun test(b: Boolean) {
    while (true) {
        if (b) break;
        continue;
    }
}
---------------------
L0:
  1 <START>
    v(b: Boolean)
    magic[FAKE_INITIALIZER](b: Boolean) -> <v0>
    w(b|<v0>)
  2 mark({ while (true) { if (b) break; continue; } })
L2 [loop entry point]:
L6 [condition entry point]:
    r(true) -> <v1>                                       PREV:[mark({ while (true) { if (b) break; continue; } }), jmp(L6)]
    mark(while (true) { if (b) break; continue; })
    magic[VALUE_CONSUMER](true|<v1>) -> <v2>
L4 [body entry point]:
  3 mark({ if (b) break; continue; })
    mark(if (b) break)
    r(b) -> <v3>
    jf(L7|<v3>)                                           NEXT:[read (Unit), jmp(L3)]
    jmp(L3)                                               NEXT:[read (Unit)]
-   jmp(L8)                                               NEXT:[merge(if (b) break|!<v4>) -> <v5>]                     PREV:[]
L7 [else branch]:
    read (Unit)                                           PREV:[jf(L7|<v3>)]
L8 ['if' expression result]:
    merge(if (b) break|!<v4>) -> <v5>
    jmp(L6)                                               NEXT:[r(true) -> <v1>]
- 2 jmp(L2)                                               NEXT:[r(true) -> <v1>]                                       PREV:[]
L3 [loop exit point]:
L5 [body exit point]:
    read (Unit)                                           PREV:[jmp(L3)]
L1:
  1 <END>                                                 NEXT:[<SINK>]
error:
    <ERROR>                                               PREV:[]
sink:
    <SINK>                                                PREV:[<ERROR>, <END>]
=====================