private BoundMatrixType BindMatrixType(MatrixTypeSyntax node)
{
var matrixType = TypeFacts.GetMatrixType(node.TypeToken.Kind);
var scalarType = matrixType.Item1;
var numRows = matrixType.Item2;
var numCols = matrixType.Item3;
return new BoundMatrixType(IntrinsicTypes.GetMatrixType(scalarType, numRows, numCols));
}