RFR: 8347826: Introspector shows wrong method list after 8071693 [v6]

[Roman Marchenko]

> Fixed `com.sun.beans.introspect.MethodInfo#MethodOrder` to make `Introspector.addMethod()` working properly when filtering methods out.
> 
> Also, after PR discussion, added the approptiate test cases with corresponding fixes in MethodInfo.java and PropertyInfo.java.

Roman Marchenko has updated the pull request incrementally with five additional commits since the last revision:

 - minor fix
 - minor fix
 - removed unnecessary lines
 - copyright year
 - Fixing review comments

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/23443/files
  - new: https://git.openjdk.org/jdk/pull/23443/files/a8653e04..e79589fc

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23443&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23443&range=04-05

  Stats: 81 lines in 4 files changed: 9 ins; 64 del; 8 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