RFR: 8264160: Regex \b is not consistent with \w without UNICODE_CHARACTER_CLASS [v7]

[Ian Graves]

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

Ian Graves has updated the pull request incrementally with 196 additional commits since the last revision:

 - Merge branch 'bug-8264160' of github.com:igraves/jdk into bug-8264160
 - Adding description of word-boundary regex
 - Removing superfluous 'if'
 - Updating with additional descriptors. Removing DataProvider import
 - 8281560: Matcher.hitEnd returns unexpected results in presence of CANON_EQ flag.
   
   Reviewed-by: rriggs, lancea
 - 8275640: (win) java.net.NetworkInterface issues with IPv6-only environments
   
   Reviewed-by: msheppar, dfuchs
 - 8282295: SymbolPropertyEntry::set_method_type fails with assert
   
   Reviewed-by: hseigel
 - 8281266: [JVMCI] MetaUtil.toInternalName() doesn't handle hidden classes correctly
   
   Reviewed-by: sgehwolf, dnsimon
 - 8282769: BSD date cannot handle all ISO 8601 formats
   
   Reviewed-by: erikj
 - 8282770: Set source date in jib profiles from buildId
   
   Reviewed-by: erikj
 - ... and 186 more: https://git.openjdk.java.net/jdk/compare/77f9a5b6...ef1e4d5b

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7539/files
  - new: https://git.openjdk.java.net/jdk/pull/7539/files/77f9a5b6..ef1e4d5b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7539&range=06
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7539&range=05-06

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 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