JS bytecode executable ""
[   0]    0: GetLexicalEnvironment dst:reg4
[   8]       CreateLexicalEnvironment dst:reg5, parent:reg4, capacity:0
[  18]       CreateMutableBinding environment:reg5, identifier:f1, can_be_deleted:false
[  28]       NewFunction dst:reg6, shared_function_data_index:0
[  40]       InitializeLexicalBinding identifier:f1, src:reg6
[  58]       CreateMutableBinding environment:reg5, identifier:f2, can_be_deleted:false
[  68]       NewFunction dst:reg6, shared_function_data_index:1
[  80]       InitializeLexicalBinding identifier:f2, src:reg6
[  98]       GetBinding dst:reg6, identifier:f1
[  b0]       SetVariableBinding identifier:f1, src:reg6
[  c8]       GetBinding dst:reg6, identifier:f2
[  e0]       SetVariableBinding identifier:f2, src:reg6
[  f8]       SetLexicalEnvironment environment:reg4
[ 100]       End value:Undefined