RFR: 8253740: [PPC64] Minor interpreter cleanup [v2]

[Martin Doerr]

> Template interpreter on PPC64 can be cleaned up after JDK-8253540:
> unlock_object has a parameter check_for_exceptions which is now unused.
> 
> In addition to that, restore_interpreter_state is redundant after
> call_VM(R4_ARG2, CAST_FROM_FN_PTR(address, InterpreterRuntime::member_name_arg_or_null) because it's already included
> in call_VM.
> https://bugs.openjdk.java.net/browse/JDK-8253740

Martin Doerr has updated the pull request incrementally with one additional commit since the last revision:

  call_VM usages: Remove some explicit /*check_exceptions=*/true parameters which match default value.

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/385/files
  - new: https://git.openjdk.java.net/jdk/pull/385/files/aa3dea5c..cda67a54

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=385&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=385&range=00-01

  Stats: 8 lines in 1 file changed: 0 ins; 4 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/385.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/385/head:pull/385

PR: https://git.openjdk.java.net/jdk/pull/385