RFR: 8296660: Swing HTML table with omitted closing tags misparsed [v2]

[Prasanta Sadhukhan]

> This is in continuation with https://github.com/openjdk/jdk/commit/7133fc93e168f3671d048b2ae654f84ec289b98d fix done for [JDK-7172359](https://bugs.openjdk.org/browse/JDK-7172359) issue where fix was done to rectify invalid tag causing StackOverflowError but it caused alignment issue if the closing tags are optional, so the fix is modified to check for optional closing tag in which case dont return false for legalElementContext()
> 
> JDK-7172359 fix and other CI regression tests are fine.

Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:

  Set test frame size

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/11355/files
  - new: https://git.openjdk.org/jdk/pull/11355/files/d92e446b..d075a9ba

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=11355&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=11355&range=00-01

  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/11355.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11355/head:pull/11355

PR: https://git.openjdk.org/jdk/pull/11355