[code-reflection] Integrated: Simplify location copying and invoke regex name matching

[Gary Frost]

We had some helpers for name regex matching (Patter=matches()) also for direct string matching (string.equals()) but they were badly named. 

Also we had a helper for copying location info, which turned out to be more verbose than just copying ;) so thats gone.

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Commit messages:
 - Simplify location copying and invoke regex name matching

Changes: https://git.openjdk.org/babylon/pull/870/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=870&range=00
  Stats: 63 lines in 11 files changed: 1 ins; 25 del; 37 mod
  Patch: https://git.openjdk.org/babylon/pull/870.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/870/head:pull/870

PR: https://git.openjdk.org/babylon/pull/870