<Swing Dev> RFR: 8264218: Public method javax.swing.JMenu.setComponentOrientation() has no spec

[Prasanta Sadhukhan]

A public overriding method JMenu.setComponentOrientation(java.awt.ComponentOrientation)
has no spec.
Added spec for the method.

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Commit messages:
 - 8264218: Public method javax.swing.JMenu.setComponentOrientation() has no spec

Changes: https://git.openjdk.java.net/jdk/pull/3213/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3213&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8264218
  Stats: 12 lines in 1 file changed: 12 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3213.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3213/head:pull/3213

PR: https://git.openjdk.java.net/jdk/pull/3213