RFR: 8328386: Convert java/awt/FileDialog/FileNameOverrideTest test to main [v5]

[Alexander Zuev]

> Convert applet based test to a main based test;
> Move test to an apporpriate location;
> Remove old files;

Alexander Zuev has updated the pull request incrementally with one additional commit since the last revision:

  More fixes based on review.

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/18365/files
  - new: https://git.openjdk.org/jdk/pull/18365/files/24f7912d..d895e970

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18365&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18365&range=03-04

  Stats: 11 lines in 1 file changed: 3 ins; 6 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/18365.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18365/head:pull/18365

PR: https://git.openjdk.org/jdk/pull/18365