remove special support for non-nullable types in lub and gbl -------------
Commit messages: - 8373953: [bworld] Undo inference changes lub and glb Changes: https://git.openjdk.org/valhalla/pull/1822/files Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1822&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8373953 Stats: 15 lines in 1 file changed: 0 ins; 9 del; 6 mod Patch: https://git.openjdk.org/valhalla/pull/1822.diff Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1822/head:pull/1822 PR: https://git.openjdk.org/valhalla/pull/1822
