== bar ==
fun Int.bar(c: C) {
    this = c
}
---------------------
               <v0>: {<: [Error type: Unresolved type for C]}   NEW: magic[FAKE_INITIALIZER](c: C) -> <v0>
               <v2>: *                                          NEW: magic[VALUE_CONSUMER](this|<v1>) -> <v2>
this           <v1>: *                                          COPY
this           <v1>: *                                          NEW: r(this, <this>) -> <v1>
c              <v3>: *                                          NEW: r(c) -> <v3>
this = c       !<v4>: *
{ this = c }   !<v4>: *                                         COPY
=====================