RFR: 8253540: InterpreterRuntime::monitorexit should be a JRT_LEAF function [v3]

[Coleen Phillimore]

> That the monitor has already been unlocked, or is a null stacklock monitor has been already checked in the caller, so
> the code that makes it a JRT_ENTRY_NO_ASYNC is unnecessary.
> Making it a JRT_LEAF like the compiled method entries makes it safer. We know it can never safepoint and
> unintentionally install a async exception.
> Tested with tier1-6.

Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:

  make calls through call_VM_leaf

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/320/files
  - new: https://git.openjdk.java.net/jdk/pull/320/files/a54ae7cd..083f345d

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=320&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=320&range=01-02

  Stats: 70 lines in 10 files changed: 6 ins; 36 del; 28 mod
  Patch: https://git.openjdk.java.net/jdk/pull/320.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/320/head:pull/320

PR: https://git.openjdk.java.net/jdk/pull/320