Specifies the true start and end of a method within a source file. Use System.Diagnostics.SymbolStore.ISymbolWriter.SetMethodSourceRange(System.Diagnostics.SymbolStore.ISymbolDocumentWriter,System.Int32,System.Int32,System.Diagnostics.SymbolStore.ISymbolDocumentWriter,System.Int32,System.Int32) to specify the extent of a method, independent of the sequence points that exist within the method.