JS bytecode executable ""
[   0]    0: GetLexicalEnvironment dst:reg4
[   8]       GetGlobal dst:reg6, identifier:test
[  18]       Call dst:reg5, callee:reg6, this_value:Undefined, test
[  38]       End value:reg5

JS bytecode executable "test"
[   0]    0: GetLexicalEnvironment dst:reg4
[   8]       CreateVariable identifier:f, is_immutable:false, is_global:false, is_strict:false
[  18]       InitializeVariableBinding identifier:f, src:Undefined
[  30]       SetLexicalBinding identifier:f, src:Int32(123)
[  48]       CreateLexicalEnvironment dst:reg5, parent:reg4, capacity:0
[  58]       CreateMutableBinding environment:reg5, identifier:f, can_be_deleted:false
[  68]       NewFunction dst:reg6, shared_function_data_index:0
[  80]       InitializeLexicalBinding identifier:f, src:reg6
[  98]       GetBinding dst:reg6, identifier:f
[  b0]       SetVariableBinding identifier:f, src:reg6
[  c8]       SetLexicalEnvironment environment:reg4
[  d0]       GetInitializedBinding dst:reg5, identifier:f
[  e8]       Return value:reg5