RFR: 8289004: investigate if SharedRuntime::get_java_tid parameter should be a JavaThread* [v2]

[Robbin Ehn]

> Hi, please consider.
> 
> Yes it should be JavaThread*.
> But some additional places needed to use JavaThread*
> 
> Passes t1-3.

Robbin Ehn has updated the pull request incrementally with one additional commit since the last revision:

  Fixed review comments

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/10532/files
  - new: https://git.openjdk.org/jdk/pull/10532/files/17936e3d..a24db865

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10532&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10532&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/10532.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10532/head:pull/10532

PR: https://git.openjdk.org/jdk/pull/10532