RFR: 8266642: improve ResolvedMethodTable hash function [v7]

[Denghui Dong]

> JDK-8249719 has fixed the bad hash function problem, however, the performance problem still exists when there are a large number of classes with the same name.
> Adding the address of the corresponding ClassLoaderData as a factor of hash can solve the problem.

Denghui Dong has updated the pull request incrementally with one additional commit since the last revision:

  refactor

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3901/files
  - new: https://git.openjdk.java.net/jdk/pull/3901/files/c7c54ae2..b02705f0

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3901&range=06
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3901&range=05-06

  Stats: 8 lines in 2 files changed: 5 ins; 1 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3901.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3901/head:pull/3901

PR: https://git.openjdk.java.net/jdk/pull/3901