method
VisitExternalSourceDirectiveTrivia
Microsoft.CodeAnalysis.VisualBasic.Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.VisualBasicSyntaxRewriter.VisitExternalSourceDirectiveTrivia(Microsoft.CodeAnalysis.VisualBasic.Microsoft.CodeAnalysis.VisualBasic.Syntax.InternalSyntax.ExternalSourceDirectiveTriviaSyntax)