Still too unstable after all.

This reverts commit 6f3c9f70.

This reverts commit 84ba24ac.

It might work now cause of the fix done in commit
f3767148.

Would show up when typing ")," where the closing brace doesn't have a
matching opening brace, for example.

Done with Roberto Raggi.

Task: 249227

It popped up an error saying the file couldn't be found. Better not show
a link at all.

Done with Roberto Raggi.

Crashes, Roberto will fix properly later.

The setting of msvc environments variables overwrote that. Fix that by running the script with the correct environment.