The class `PseudoClassState` is private API, but was exposed erroneously in the CSS API. Instead, `Set<PseudoClass>` should have been used. This PR corrects this.
------------- Commit messages: - Remove references to PseudoClassState (private) in Match (public API) Changes: https://git.openjdk.org/jfx/pull/1070/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1070&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8304959 Stats: 7 lines in 1 file changed: 1 ins; 2 del; 4 mod Patch: https://git.openjdk.org/jfx/pull/1070.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/1070/head:pull/1070 PR: https://git.openjdk.org/jfx/pull/1070
