When called with a defined function (not a lambda), ⎕EA returns an incorrect result.
NOTE: The same issue affects ⎕EB and ⎕EC.
]boxing 8
∇z←foo
[1] z←1
[2] ∇
foo
┌─┐
│1│
└─┘
'0' ⎕ea 'foo'
┌→──────────┐
│1 ┌→──┐ ┌─┐│
│ │0 0│ │1││
│ └───┘ └─┘│
└∊──────────┘
bar←{1}
bar
┌─┐
│1│
└─┘
'0' ⎕ea 'bar'
┌─┐
│1│
└─┘
