parse error from type T{} in anonymous function

[stevengj]

This seems inconsistent (from discourse):

julia> function foo(::Dict{}); end
foo (generic function with 1 method)

julia> function(::Dict{}); end
ERROR: syntax: expected "(" in function definition
Stacktrace:
 [1] top-level scope
   @ none:1

julia> function(::Dict); end
#5 (generic function with 1 method)

julia> (::Dict{}) -> nothing
#9 (generic function with 1 method)

[A1-Mathematik]

I don't know if that's also fix with that

julia> f(a = (b::String)::Bool -> true) = a
ERROR: syntax: "b::String" is not a valid function argument name around REPL[13]:1
Stacktrace:
 [1] top-level scope
   @ REPL[13]:1

julia> f(a = (b::String)::Bool -> begin true end) = a
ERROR: syntax: "b::String" is not a valid function argument name around REPL[14]:1
Stacktrace:
 [1] top-level scope
   @ REPL[14]:1

[A1-Mathematik]

julia> function(a::Int)::Bool end
ERROR: syntax: ambiguous signature in function definition. Try adding a comma if this is a 1-argument anonymous function.
Stacktrace:
 [1] top-level scope
   @ none:1

julia> function(a::Int,)::Bool end
ERROR: syntax: ambiguous signature in function definition. Try adding a comma if this is a 1-argument anonymous function.
Stacktrace:
 [1] top-level scope
   @ none:1

julia> VERSION
v"1.8.0-DEV.94"

[stevengj]

@A1-Mathematik, you should open a new issue since this seems to be a different problem.