MemberExpression's property field is typed as an Expression, but can be false

[benoitkoenig]

Parsing the expression [1, 2, 3][] returns a MemberExpression

• It's object field contains the expression for the array [1, 2, 3] as expected
• It's property field is set to false. MemberExpression#property is typed as an Expression and cannot be false

I made a minimal repro repository here

Please either update MemberExpression's type, or update it's return value when meeting this specific scenario