Cleanup and regularization of the specs of the four get[Declared]Constructor[s] methods.
------------- Commit messages: - JDK-8278953: Clarify Class.getDeclaredConstructor specification Changes: https://git.openjdk.java.net/jdk/pull/6897/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6897&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8278953 Stats: 20 lines in 1 file changed: 11 ins; 4 del; 5 mod Patch: https://git.openjdk.java.net/jdk/pull/6897.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/6897/head:pull/6897 PR: https://git.openjdk.java.net/jdk/pull/6897
