Base:
method
CreateUsingStatement
Microsoft.CodeAnalysis.IntroduceUsingStatement.AbstractIntroduceUsingStatementCodeRefactoringProvider<TStatementSyntax, TExpressionStatementSyntax, TLocalDeclarationSyntax, TTryStatementSyntax>.CreateUsingStatement(TLocalDeclarationSyntax, Microsoft.CodeAnalysis.SyntaxList<TStatementSyntax>)