== A ==
interface A {
    fun foo() : Int
}
---------------------
L0:
  1 <START>
L1:
    <END>      NEXT:[<SINK>]
error:
    <ERROR>    PREV:[]
sink:
    <SINK>     PREV:[<ERROR>, <END>]
=====================
== foo ==
fun foo() : Int
---------------------
L0:
  1 <START>
L1:
    <END>      NEXT:[<SINK>]
error:
    <ERROR>    PREV:[]
sink:
    <SINK>     PREV:[<ERROR>, <END>]
=====================
== B ==
class B : A {
    override fun foo() = 10
}
---------------------
L0:
  1 <START>
L1:
    <END>      NEXT:[<SINK>]
error:
    <ERROR>    PREV:[]
sink:
    <SINK>     PREV:[<ERROR>, <END>]
=====================
== foo ==
override fun foo() = 10
---------------------
L0:
  1 <START>
    r(10) -> <v0>
    ret(*|<v0>) L1
L1:
    <END>             NEXT:[<SINK>]
error:
    <ERROR>           PREV:[]
sink:
    <SINK>            PREV:[<ERROR>, <END>]
=====================
== foo ==
fun foo(b: B) : Int {
    val o = object : A by b {}
    return o.foo()
}
---------------------
L0:
  1 <START>
    v(b: B)
    magic[FAKE_INITIALIZER](b: B) -> <v0>
    w(b|<v0>)
  2 mark({ val o = object : A by b {} return o.foo() })
    v(val o = object : A by b {})
    mark(object : A by b {})
    r(b) -> <v1>
    magic[VALUE_CONSUMER](A by b|<v1>) -> <v2>
    r(object : A by b {}) -> <v3>
    w(o|<v3>)
    mark(o.foo())
    r(o) -> <v4>
    mark(foo())
    call(foo(), foo|<v4>) -> <v5>
    ret(*|<v5>) L1
L1:
  1 <END>                                                  NEXT:[<SINK>]
error:
    <ERROR>                                                PREV:[]
sink:
    <SINK>                                                 PREV:[<ERROR>, <END>]
=====================