RFR: 8264160: Regex \b is not consistent with \w without UNICODE_CHARACTER_CLASS [v3]

[Ian Graves]

> Proposed change in behavior to correct inconsistencies between `\w` and `\b` metacharacters

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

 - Merge branch 'master' of https://github.com/openjdk/jdk into bug-8264160
 - Bug id's to header and some other cleanup
 - Fixing bad javadoc
 - Merge remote-tracking branch 'upstream/master' into bug-8264160
 - Updating spec
 - Proposed change for \b metacharacter

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Changes: https://git.openjdk.java.net/jdk/pull/7539/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7539&range=02
  Stats: 79 lines in 2 files changed: 61 ins; 6 del; 12 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7539.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7539/head:pull/7539

PR: https://git.openjdk.java.net/jdk/pull/7539