Removed redundant ExpressionUtil::GetTypeName and switched to ExpressionTypeToString
Removed redundant ExpressionUtil::GetTypeName and switched to ExpressionTypeToString

Ghatage/peloton,amaliujia/peloton,amaliujia/peloton,Ghatage/peloton,Ghatage/peloton,amaliujia/peloton,amaliujia/peloton,Ghatage/peloton,amaliujia/peloton,Ghatage/peloton,amaliujia/peloton,amaliujia/peloton,Ghatage/peloton,Ghatage/peloton