RFR: OSX build fails with Xcode 12 due to missing parantheses around sizeo… [v2]

[kabutz]

> …f(relocInfo)
> For some reason, OS X 10.15.7 Catalina with Xcode 12 fails to compile the sharedRuntime.cpp without these extra
> parentheses. The tests pass on Linux and OS X with this small change.
> Output from the compiler:
> * For target hotspot_variant-server_libjvm_objs_sharedRuntime.o:
> 
>       buffer.stubs()->initialize_shared_locs((relocInfo*)stubs_locs_buf, sizeof(stubs_locs_buf) / sizeof(relocInfo));
>                                                                                 ~~~~~~~~~~~~~~  ^
> 
>       double stubs_locs_buf[20];
>              ^
> 
>       buffer.stubs()->initialize_shared_locs((relocInfo*)stubs_locs_buf, sizeof(stubs_locs_buf) / sizeof(relocInfo));
>                                                                                                 ^
> 1 error generated.

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

  changed to using struct like in https://github.com/openjdk/jdk/commit/f80a6066

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

Changes:
  - all: https://git.openjdk.java.net/loom/pull/20/files
  - new: https://git.openjdk.java.net/loom/pull/20/files/7afc6580..2f941745

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=loom&pr=20&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=loom&pr=20&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/loom/pull/20.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/20/head:pull/20

PR: https://git.openjdk.java.net/loom/pull/20