method
AddAttribute
Microsoft.VisualStudio.LanguageServices.UnitTests.Microsoft.VisualStudio.LanguageServices.UnitTests.CodeModel.AbstractCodeElementTests(Of TCodeElement).AddAttribute(TCodeElement, Microsoft.VisualStudio.LanguageServices.UnitTests.Microsoft.VisualStudio.LanguageServices.UnitTests.CodeModel.AbstractCodeModelObjectTests(Of TCodeElement).AttributeData)