[Rev 02] RFR: 8207759: VK_ENTER not consumed by TextField when default Button exists

[Jeanette Winzenburg]

> This is a fix for https://bugs.openjdk.java.net/browse/JDK-8207759
> 
> The issue is that default/cancel button on a scene are triggered even though a onKeyPressed handler for ENTER/CANCEL consumes the keyEvent. See the bug for details on both cause and fix.
> 
> There are additional/changed tests to verify the fix. All old tests are passing.

The pull request has been updated with 1 additional commit.

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Added commits:
 - 7c10ad1d: added tests to guard against JDK-8145515

Changes:
  - all: https://git.openjdk.java.net/jfx/pull/15/files
  - new: https://git.openjdk.java.net/jfx/pull/15/files/fdf97072..7c10ad1d

Webrevs:
 - full: https://webrevs.openjdk.java.net/jfx/15/webrev.02
 - incr: https://webrevs.openjdk.java.net/jfx/15/webrev.01-02

  Stats: 40 lines in 1 file changed: 40 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jfx/pull/15.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/15/head:pull/15

PR: https://git.openjdk.java.net/jfx/pull/15