RFR: JDK-8328398 : Convert java/awt/im/4490692/bug4490692.html applet test to main [v6]

[Harshitha Onkar]

> Following test is converted from applet to main using PassFailJFrame.
> 
> The original test had ignore tag - **The fix for this problem was backed out for 5057184.  Remove this "ignore" tag when it is fixed again.**
> I believe this was fixed and the test works correctly on Linux platforms, hence ignore tag has been removed.
> 
> This is a semi-automated test, the first check is manual and the 2nd one is automated. Details in the test instructions.

Harshitha Onkar has updated the pull request incrementally with one additional commit since the last revision:

  re-added @requires tag

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/18402/files
  - new: https://git.openjdk.org/jdk/pull/18402/files/de73fa42..f86f3d07

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18402&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18402&range=04-05

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/18402.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18402/head:pull/18402

PR: https://git.openjdk.org/jdk/pull/18402