RFR: 8314502: Change the comparator taking version of GrowableArray::find to be a template method [v12]

[Afshin Zafari]

> The `find` method now is 
> ```C++
> template<typename T>
> int find(T* token, bool f(T*, E)) const {
> ...
> 
> Any other functions which use this are also changed.
> Local linux-x64-debug hotspot:tier1 passed. Mach5 tier1 build on linux and Windows passed.

Afshin Zafari has updated the pull request incrementally with two additional commits since the last revision:

 - Merge remote-tracking branch 'upstream/pr/15418' into pr_15418
 - Suggested cleanups and tests

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/15418/files
  - new: https://git.openjdk.org/jdk/pull/15418/files/8d5f54ab..cb88988e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15418&range=11
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15418&range=10-11

  Stats: 14 lines in 7 files changed: 5 ins; 6 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/15418.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15418/head:pull/15418

PR: https://git.openjdk.org/jdk/pull/15418