MyType[:a :b; :c :d] is a syntax error on latest master

[dalum]

In v0.6, this works:

struct MyType{T}
    value::T
end
Base.convert(::Type{MyType}, x::MyType) = x
Base.convert(::Type{MyType}, x) = MyType(x)
A = MyType[:a :b; :c :d]

to create a Matrix of MyTypes.

In latest master this gets interpreted as a slicing of some sort, I guess, because I get the following error:

ERROR: syntax: expected separator between arguments to "[ ]"; got ":a:"

Same thing for larger matrices of symbols. But

A = MyType[:a; :c]

has no such problems.

[fredrikekre]

#22816 (comment)