 
     func testDocXMLParseErrors() {
         do {
-            try parseSwiftDocAsXML("<Class><Name>Int</Name><Abstract><Para></Abstract></Class>")
+            let _ = try parseSwiftDocAsXML("<Class><Name>Int</Name><Abstract><Para></Abstract></Class>")
             XCTFail()
         } catch SwiftDocXMLError.parseError(let error) {
             XCTAssertEqual(error.domain, XMLParser.errorDomain)

        }

        do {
            try parseSwiftDocAsXML("<Class><Name>ClosedInterval</Name><USR>s:Vs14ClosedInterval</USR><Declaration>struct ClosedInterval</Declaration><Abstract><Para>A closed IntervalType.</Para></Abstract><Parameters><Parameter><Name>Bound</Name><Name>Another one</Name><Discussion><Para>Test.</Para></Discussion></Parameter></Parameters></Class>")
            XCTFail()
        } catch SwiftDocXMLError.moreThanOneElement("Parameter.Name") {
        } catch {

        }

        do {
            let _ = try parseSwiftDocAsXML("<Class><Name>Int</Name><Abstract>B</Abstract><Abstract>A</Abstract></Class>")
            XCTFail()
        } catch SwiftDocXMLError.moreThanOneElement("Abstract") {
        } catch {
