RFR: JDK-8281671: Class.getCanonicalName spec should explicitly cover array classes [v2]

[Joe Darcy]

> Add explicit discussion of array types to Class.getCanonicalName, no change in behavior.
> 
> I didn't see any existing regression tests for the various "getFooName" methods of Class so I created a new test file for a handful of test cases.
> 
> Please also review the corresponding CSR: https://bugs.openjdk.java.net/browse/JDK-8281922

Joe Darcy has updated the pull request incrementally with one additional commit since the last revision:

  Augment test.

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7483/files
  - new: https://git.openjdk.java.net/jdk/pull/7483/files/2b0729ad..b414e3ef

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7483&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7483&range=00-01

  Stats: 31 lines in 1 file changed: 31 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7483.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7483/head:pull/7483

PR: https://git.openjdk.java.net/jdk/pull/7483