RFR: 8261075: Create stubRoutines.inline.hpp with SafeFetch implementation [v2]

[Anton Kozlov]

> Hi, 
> 
> Please reivew a small non-functional change that extracts inline SafeFetch functions to a separate file. This is preliminary work for JEP-391 integration that will reduce the size of that patch.
> 
> CC @dcubed-ojdk 
> 
> Thanks!

Anton Kozlov has updated the pull request incrementally with one additional commit since the last revision:

  stubRoutines.inline.hpp -> safefetch.hpp

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2542/files
  - new: https://git.openjdk.java.net/jdk/pull/2542/files/a00d9064..d2957b98

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2542&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2542&range=00-01

  Stats: 20 lines in 10 files changed: 7 ins; 8 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2542.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2542/head:pull/2542

PR: https://git.openjdk.java.net/jdk/pull/2542