[jdk11u-dev] RFR: 8308286: Fix clang warnings in linux code [v2]

[Artem Semenov]

> When using the clang compiler to build OpenJDk on Linux, we encounter various "warnings as errors".
> They can be fixed with small changes.
> 
> As in the original patch, I added instructions to the make to suppress the clang compiler warnings.
> 
> @djelinski please review

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

  update

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

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/2016/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/2016/files/af8cba70..6a4f5184

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2016&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2016&range=00-01

  Stats: 10 lines in 9 files changed: 0 ins; 0 del; 10 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2016.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2016/head:pull/2016

PR: https://git.openjdk.org/jdk11u-dev/pull/2016