RFR: 8264732: Clean up LinkResolver::vtable_index_of_interface_method() [v5]

[Vladimir Ivanov]

> Turn `resolved_method` parameter into raw `Method*`.
> 
> Testing:
> * [x] hs-tier1 - hs-tier6

Vladimir Ivanov has updated the pull request incrementally with one additional commit since the last revision:

  InstanceKlass::method_at_itable_or_null() cleanups

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3346/files
  - new: https://git.openjdk.java.net/jdk/pull/3346/files/b6737c15..b5aaf41e

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3346&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3346&range=03-04

  Stats: 11 lines in 1 file changed: 0 ins; 0 del; 11 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3346.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3346/head:pull/3346

PR: https://git.openjdk.java.net/jdk/pull/3346