Verify the behavior of dynamic in deconstructions

[jcouv]

Confirm whether the following code is correct:

    private ImmutableArray<BoundExpression> LeftHandSideSideEffects(ImmutableArray<BoundExpression> variables, ArrayBuilder<LocalSymbol> temps, ArrayBuilder<BoundExpression> stores)
        {
            var lhsReceivers = ArrayBuilder<BoundExpression>.GetInstance(variables.Length);

            foreach (var variable in variables)
            {
                // PROTOTYPE(tuples) should the dynamic flag always be false?
                lhsReceivers.Add(TransformCompoundAssignmentLHS(variable, stores, temps, isDynamicAssignment: false));
            }

            return lhsReceivers.ToImmutableAndFree();
        }

in LocalRewriter_DeconstructionAssignmentOperator.cs

[jcouv]

Fixed by #13724