Xcode 7 on Mojave?

Question

I have updated to 10.14. Then I could not launch Xcode 7.3.1 (believe me I wish this were not necessary). I downloaded and re-installed Xcode 7.3.1, but I still get the same error in the "Report to Apple" dialog:

Dyld Error Message:
  Symbol not found: _OBJC_IVAR_$_NSTextViewIvars.sharedData
  Referenced from: /Applications/Xcode.7.3.1.app/Contents/MacOS/../SharedFrameworks/DVTKit.framework/Versions/A/DVTKit
  Expected in: /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
  in /Applications/Xcode.7.3.1.app/Contents/MacOS/../SharedFrameworks/DVTKit.framework/Versions/A/DVTKit

I have tried

sudo xcode-select --switch /Applications/Xcode.7.3.1.app/Contents/Developer

which doesn't seem to solve the problem either.

Note: after each failed attempt to launch, I have to remove the quarantine xattrs with:

sudo xattr -dr com.apple.quarantine /Applications/Xcode.7.3.1.app