Base:
method
ProcessCompilationUnit
Microsoft.CodeAnalysis.AddAccessibilityModifiers.AbstractAddAccessibilityModifiersDiagnosticAnalyzer<TCompilationUnitSyntax>.ProcessCompilationUnit(Microsoft.CodeAnalysis.Diagnostics.SyntaxTreeAnalysisContext, Microsoft.CodeAnalysis.CodeStyle.CodeStyleOption2<Microsoft.CodeAnalysis.CodeStyle.AccessibilityModifiersRequired>, TCompilationUnitSyntax)