Safe navigation breaks

[BSteffaniak]

This compiles:

class Assignment extends Operation {
    public Value assigned <=> operands[0]
    public Value assignment <=> operands[1]
    
    public Node scopeConsumer => assignment ? assignment.returnedNode : null

but this doesn't:

class Assignment extends Operation {
    public Value assigned <=> operands[0]
    public Value assignment <=> operands[1]
    
    public Node scopeConsumer => assignment?.returnedNode