public DummyProvidedExpr(ProvidedExprType exprType, ProvidedTypeContext context)
     : this(null, exprType, context)
 {
 }
 public DummyProvidedExpr(ProvidedType type, ProvidedExprType exprType, ProvidedTypeContext context)
     : base(FSharpExpr.Value(0), context)
 {
     myExprType = exprType;
     Type       = type;
 }