This commit effectively reverts
d386712903.
The reason is that when using a release language version, you can only
"see" the subset of a pre-release library which consists of released and
supported features, so reporting an error is not helpful there. Also, it
presents a problem currently when using kotlinc 1.3 (which is
pre-release) with language version 1.2 (stable) against the bundled
stdlib of version 1.3 (pre-release)
#KT-21267 Declined
Alexander Udalov