RFR: 8347826: Introspector shows wrong method list after 8071693 [v2]

[Roman Marchenko]

> Fixed `com.sun.beans.introspect.MethodInfo#MethodOrder` to make `Introspector.addMethod()` working properly when filtering methods out.
> 
> Also fixed the test, and added the approptiate test case.

Roman Marchenko has updated the pull request incrementally with one additional commit since the last revision:

  test refactoring

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/23443/files
  - new: https://git.openjdk.org/jdk/pull/23443/files/605ec5a5..3cea2bb2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23443&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23443&range=00-01

  Stats: 46 lines in 1 file changed: 14 ins; 30 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/23443.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23443/head:pull/23443

PR: https://git.openjdk.org/jdk/pull/23443