RFR: 8281560: Matcher.hitEnd returns unexpected results in presence of CANON_EQ flag. [v2]

[Ian Graves]

> Fixing a bug in `NFCCharProperty` where code falling through an if-statement can prematurely set the matcher's `hitEnd` field to true.

Ian Graves has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains two commits:

 - merging master
 - Catching erronious setting of matcher.hitEnd

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Changes: https://git.openjdk.java.net/jdk/pull/7466/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7466&range=01
  Stats: 29 lines in 2 files changed: 27 ins; 1 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7466.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7466/head:pull/7466

PR: https://git.openjdk.java.net/jdk/pull/7466