== test ==
fun test() {
    do {
        val s: String
        s = ""
    } while (s == "")
}
---------------------
L0:
  1 <START>                                                  INIT: in: {} out: {}
  2 mark({ do { val s: String s = "" } while (s == "") })                                    USE: in: {} out: {}
  3 mark(do { val s: String s = "" } while (s == ""))
L2 [loop entry point]:
L4 [body entry point]:
    mark({ val s: String s = "" })
    v(val s: String)                                         INIT: in: {} out: {s=D}
    mark("")                                                 INIT: in: {s=D} out: {s=D}
    r("") -> <v0>                                                                            USE: in: {s=WRITTEN_AFTER_READ} out: {s=WRITTEN_AFTER_READ}
    w(s|<v0>)                                                INIT: in: {s=D} out: {s=ID}     USE: in: {s=READ} out: {s=WRITTEN_AFTER_READ}
L5 [body exit point]:
L6 [condition entry point]:
    r(s) -> <v2>                                             INIT: in: {s=ID} out: {s=ID}    USE: in: {} out: {s=READ}
    mark("")
    r("") -> <v3>
    mark(s == "")
    call(s == "", equals|<v2>, <v3>) -> <v4>
  2 jt(L2|<v4>)                                              INIT: in: {} out: {}
L3 [loop exit point]:
    read (Unit)
L1:
  1 <END>
error:
    <ERROR>
sink:
    <SINK>                                                                                   USE: in: {} out: {}
=====================
== test2 ==
fun test2() {
    while (true) {
        val s: String
        s = ""
        if (s != "") break
    }
}
---------------------
L0:
  1 <START>                                                               INIT: in: {} out: {}
  2 mark({ while (true) { val s: String s = "" if (s != "") break } })
L2 [loop entry point]:
L6 [condition entry point]:
    r(true) -> <v0>
    mark(while (true) { val s: String s = "" if (s != "") break })
    magic[VALUE_CONSUMER](true|<v0>) -> <v1>                                                              USE: in: {} out: {}
L4 [body entry point]:
  3 mark({ val s: String s = "" if (s != "") break })
    v(val s: String)                                                      INIT: in: {} out: {s=D}
    mark("")                                                              INIT: in: {s=D} out: {s=D}
    r("") -> <v2>                                                                                         USE: in: {s=WRITTEN_AFTER_READ} out: {s=WRITTEN_AFTER_READ}
    w(s|<v2>)                                                             INIT: in: {s=D} out: {s=ID}     USE: in: {s=READ} out: {s=WRITTEN_AFTER_READ}
    mark(if (s != "") break)                                              INIT: in: {s=ID} out: {s=ID}    USE: in: {s=READ} out: {s=READ}
    r(s) -> <v3>                                                                                          USE: in: {} out: {s=READ}
    mark("")
    r("") -> <v4>
    mark(s != "")
    call(s != "", equals|<v3>, <v4>) -> <v5>
    jf(L7|<v5>)
    jmp(L3)                                                                                               USE: in: {} out: {}
-   jmp(L8)
L7 [else branch]:
    read (Unit)                                                           INIT: in: {s=ID} out: {s=ID}
L8 ['if' expression result]:
    merge(if (s != "") break|!<v6>) -> <v7>
  2 jmp(L2)                                                               INIT: in: {} out: {}
L3 [loop exit point]:
L5 [body exit point]:
    read (Unit)
L1:
  1 <END>
error:
    <ERROR>
sink:
    <SINK>                                                                                                USE: in: {} out: {}
=====================