------------ #lib::A:: ------------
%this = _Parameter #0 [_T (#lib::A)+]
t1 = _Call direct [dart.core::Object::] (%this)
RESULT: _T {}?
------------ #lib::A::foo1 ------------
%this = _Parameter #0 [_T (#lib::A)+]
%x = _Parameter #1 [_T (dart.core::Object)+?]
RESULT: _T {}?
------------ #lib::B:: ------------
%this = _Parameter #0 [_T (#lib::B)+]
t1 = _Call direct [dart.core::Object::] (%this)
RESULT: _T {}?
------------ #lib::B::bar1 ------------
%this = _Parameter #0 [_T (#lib::B)+]
%arg = _Parameter #1 [_T (dart.core::Object)+?]
RESULT: _T {}?
------------ #lib::B::bar2 ------------
%this = _Parameter #0 [_T (#lib::B)+]
RESULT: _T {}?
------------ #lib::B::bar3 ------------
%this = _Parameter #0 [_T (#lib::B)+]
%y = _Parameter #1 [_T (dart.core::int)+?]
RESULT: _T {}?
------------ #lib::B::bar4 ------------

RESULT: _T {}?
------------ #lib::C:: ------------
%this = _Parameter #0 [_T (#lib::C)+]
t1 = _Call direct [dart.core::Object::] (%this)
RESULT: _T {}?
------------ #lib::C::interfaceCalls ------------
%this = _Parameter #0 [_T (#lib::C)+]
%aa = _Parameter #1 [_T (#lib::A)+?]
%a2 = _Parameter #2 [_T (dart.core::Object)+?]
%a3 = _Parameter #3 [_T (dart.core::Object)+?]
%a4 = _Parameter #4 [_T (dart.core::Object)+?]
t5 = _Call direct [#lib::B::] (_T (#lib::B))
t6 = _Call [#lib::A::foo1] (%aa, _T (#lib::B))
t7* = _Call get [#lib::A::foo2] (%aa)
t8 = _Narrow (t7 to _T (dart.core::int)+?)
t9 = _Call set [#lib::A::foo3] (%aa, t8)
t10* = _Call get [#lib::A::foo2] (%aa)
t11 = _Call dynamic [call] (t10, %a2, %a3, _T ANY?)
a4 = _Join [dart.core::Object] (%a4, _T ANY?)
RESULT: a4
------------ #lib::C::dynamicCalls ------------
%this = _Parameter #0 [_T (#lib::C)+]
%aa = _Parameter #1 [_T ANY?]
%a2 = _Parameter #2 [_T (dart.core::Object)+?]
%a3 = _Parameter #3 [_T (dart.core::Object)+?]
%a4 = _Parameter #4 [_T (dart.core::Object)+?]
t5 = _Call direct [#lib::B::] (_T (#lib::B))
t6 = _Call dynamic [foo1] (%aa, _T (#lib::B))
t7* = _Call dynamic get [foo2] (%aa)
t8 = _Call dynamic set [foo3] (%aa, t7)
t9* = _Call dynamic get [foo1] (%aa)
t10* = _Call dynamic [foo2] (%aa, %a2, %a3, t9)
a4 = _Join [dart.core::Object] (%a4, t10)
RESULT: a4
------------ #lib::D:: ------------
%this = _Parameter #0 [_T (#lib::D)+]
t1 = _Call direct [#lib::B::] (%this)
RESULT: _T {}?
------------ #lib::D::superCalls ------------
%this = _Parameter #0 [_T (#lib::D)+]
%a1 = _Parameter #1 [_T (dart.core::Object)+?]
%a2 = _Parameter #2 [_T (dart.core::Object)+?]
%a3 = _Parameter #3 [_T (dart.core::Object)+?]
%a4 = _Parameter #4 [_T (dart.core::Object)+?]
t5 = _Call direct [#lib::B::bar1] (%this, %a1)
t6* = _Call direct get [#lib::B::bar4] (%this)
t7 = _Call direct set [#lib::B::bar3] (%this, t6)
t8* = _Call direct get [#lib::B::bar2] (%this)
t9* = _Call dynamic [call] (t8, %a2, %a3, _T ANY?)
a4 = _Join [dart.core::Object] (%a4, t9)
RESULT: a4
------------ #lib::main ------------

RESULT: _T {}?