RFR: 8247973: Javadoc incorrect for IdentityArrayList, IdentityLinkedList

[ANUPAM DEV]

The documentation for following methods used object equality mentioning 'equals()'. I have replaced the equals() with == operator where necessary with some formattings.

sun.awt.util.IdentityLinkedList#contains
sun.awt.util.IdentityArrayList#contains
sun.awt.util.IdentityArrayList#indexOf
sun.awt.util.IdentityArrayList#lastIndexOf
sun.awt.util.IdentityArrayList#remove(java.lang.Object) 

Kindly review the change.

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

Commit messages:
 - 8247973: Javadoc incorrect for IdentityArrayList, IdentityLinkedList
 - Merge branch 'openjdk:master' into master
 - Merge pull request #1 from anupamdev20/JDK-8255675
 - 8255675: Typo in java.net.HttpURLConnection

Changes: https://git.openjdk.java.net/jdk/pull/6710/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6710&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8247973
  Stats: 19 lines in 2 files changed: 8 ins; 0 del; 11 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6710.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6710/head:pull/6710

PR: https://git.openjdk.java.net/jdk/pull/6710