8247973: Javadoc incorrect for IdentityArrayList, IdentityLinkedList

[anupamdev20]

The following methods were having improper improper as they mentioned 'equals()' while comparing two objects. The comments have been changed to reflect the comparison of two objects using == operator.

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)

Please review the changes.
Thanks!

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Issue

• JDK-8247973: Javadoc incorrect for IdentityArrayList, IdentityLinkedList

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