Detect syntax errors only on save

[brettcannon]

Discussed in #16166

^{Originally posted by Sentinellium May 5, 2021}
Today i noticed that vs code started to analyze code problems while typing which i didn't notice before, changing the setting didn't help and i can`t make it to check the code on save as it was earlier.

Environment data

Version: 1.56.0 (user setup)
Commit: cfa2e218100323074ac1948c885448fdf4de2a7f
Date: 2021-05-04T22:09:06.405Z
Electron: 12.0.4
Chrome: 89.0.4389.114
Node.js: 14.16.0
V8: 8.9.255.24-electron.0
OS: Windows_NT x64 10.0.19042

[brettcannon]

Thank you for submitting your feature request and everyone who considered it! Unfortunately this issue did not receive enough votes over the allotted time, and so we are closing the issue.