private UnassignedVariablesWalker( CSharpCompilation compilation, Symbol member, BoundNode node ) : base(compilation, member, node, EmptyStructTypeCache.CreateNeverEmpty()) { }
private IteratorAndAsyncCaptureWalker(CSharpCompilation compilation, MethodSymbol method, BoundNode node, HashSet <Symbol> initiallyAssignedVariables) : base(compilation, method, node, EmptyStructTypeCache.CreateNeverEmpty(), trackUnassignments: true, initiallyAssignedVariables: initiallyAssignedVariables) { }