-// cs1570-8.cs: XML comment on `F:Testing.Test.Constant2' has non-well-formed XML ('summary' is expected Line 3, position 4.)
+// CS1570: XML documentation comment on `Testing.Test.Constant2' is not well-formed XML markup (The 'summary' start tag on line 1 position 3 does not match the end tag of 'invalid'. Line 3, position 4.)