Name mangling in errors for functions with keyword argument

[joehuchette]

julia> foo(x::Int;y=false) = (true &&& false)
foo (generic function with 1 method)

julia> foo(1)
ERROR: error compiling foo: unsupported or misplaced expression & in function foo

julia> foo(1;y=true)
ERROR: error compiling __foo#1__: unsupported or misplaced expression & in function __foo#1__

[ihnorton]

the syntax error is in the function body:

julia> true &&& false
ERROR: unsupported or misplaced expression &

[joehuchette]

Yes, I'm aware about the syntax error, I opened this because of the __foo#1__ in the second error message. Not hugely annoying, but seems like unexpected behavior.

[ihnorton]

I think this is basically expected right now. see #2758.

[JeffBezanson]

Basically a dup of #13599, and I'll add a better syntax error for this case.