https://bugs.kde.org/show_bug.cgi?id=478617

            Bug ID: 478617
           Summary: kwin scripting reports needing ';' or ',' in lines of
                    good javascript code seen in the declaration 'async'
                    as well as the 'await' operator.
    Classification: Plasma
           Product: kwin
           Version: 5.27.10
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: scripts
          Assignee: kwin-bugs-n...@kde.org
          Reporter: s21926...@gmail.com
  Target Milestone: ---
             Flags: X11+, NVIDIA+

SUMMARY
kwin scripting despite having support and working with promise and thenable
objects under kwin. Does not seem to recognise the operator 'await' or 'async'
declarations which are features of ES6 along with the mentioned thenables and
the class syntax. Both of which I use in my kwin script. Instead of just
working I get syntax errors in the console saying that the specific line is
missing a semicolon or comma.

STEPS TO REPRODUCE
1. 
type something like: 
```
async function() {

}
```
or like:
```
const variable = await Promise.race([myFunc(500), myAsyncFunc()]);
```
in the plasmainteractive console.
2. 
Open up a journalctl listener with:
```
journalctl -f QT_CATEGORY=js QT_CATEGORY=kwin_scripting
```
3.
And execute the scripting using the kwin environment setting in the interactive
console.

OBSERVED RESULT
Outputs these errors in the console:
```
Dec 16 20:48:52 TRKY2 kwin_x11[1095]: kwin_scripting:
/home/s/.local/share/plasma-interactiveconsole/interactiveconsoleautosave.js:65:
error: Expected token `,'
Dec 16 20:49:13 TRKY2 kwin_x11[1095]: kwin_scripting:
/home/s/.local/share/plasma-interactiveconsole/interactiveconsoleautosave.js:60:
error: Expected token `;'
```
EXPECTED RESULT
Executing the code asynchronously with expected behavior.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.113.0
Qt Version: 5.15.11
Kernel Version: 6.6.7-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 24 × AMD Ryzen 9 3900X 12-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1080/PCIe/SSE2
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: X570 AORUS ELITE
System Version: -CF

ADDITIONAL INFORMATION
bug report 447922 seems to be the same issue however it is slightly different
as lambda functions do seem to work for me and it doesnt mention 'await'

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