IntelliSense: suggest definitions in not-yet-included file

Currently (please correct me if I'm wrong), it seems VSCode will not suggest definitions that are not yet included in the source file. This is despite the fact that the definitions reside in header files in includePath. Example below.

For instance, say I wanted to create an instance of std::map in my source file. I have not yet added #include <map> at the top of my source file.

In some other C++ IDEs, a code suggestion will appear for std::map when I start typing it (see NetBeans example below). If I choose to accept the suggestion, #include <map> is automatically added at the top of my source file.

In VSCode, however, I'm not getting this suggestion unless I add #include <map> first.

Suggestion: Enable IntelliSense to suggest definitions that are (not yet) included in the source file.
Automatically add #include (relevant header) when accepting such a suggestion.

Beginne damit, die Einstiegspunkte für IntelliSense-Vervollständigungen und die Include-Behandlung in diesem Repository zu finden; im Issue werden keine Dateien oder Tests genannt. Fertig ist die Aufgabe, wenn Vorschläge Definitionen in konfigurierten Headern finden können, die noch nicht eingebunden sind, und die Auswahl eines Vorschlags das relevante Include hinzufügt.