Review: https://jetbrains.team/p/kt/reviews/6753
This commit doesn't fix any issue except for "cleanup". If you find a
mistake in this commit feel free to revert part of it/the whole commit
I checked every module where I drop ':dist' dependency. Tests still pass
in those modules
tools.jar from JDK has different public api on different platforms which
makes impossible to reuse caches for tasks which depend on it. Since we
can't compile against those classes & stay cross-platform anyway, we
may just exclude them from compile classpath. This should make tools.jar
compatible at least within one build of JDK for different platforms