[Rev 02] RFR: 8233747: JVM crash in com.sun.webkit.dom.DocumentImpl.createAttribute

[Arun Joseph]

The pull request has been updated with additional changes.

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

Added commits:
 - 7f6ed5bf: Added test for createAttribute

Changes:
  - all: https://git.openjdk.java.net/jfx/pull/47/files
  - new: https://git.openjdk.java.net/jfx/pull/47/files/2bd56c11..7f6ed5bf

Webrevs:
 - full: https://webrevs.openjdk.java.net/jfx/47/webrev.02
 - incr: https://webrevs.openjdk.java.net/jfx/47/webrev.01-02

  Issue: https://bugs.openjdk.java.net/browse/JDK-8233747
  Stats: 20 lines in 1 file changed: 20 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jfx/pull/47.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/47/head:pull/47

PR: https://git.openjdk.java.net/jfx/pull/47