[jdk11u-dev] RFR: 8282467: add extra diagnostics for JDK-8268184 [v2]

[Christoph Langer]

> Hi all,
> 
> This pull request contains a backport of [JDK-8282467](https://bugs.openjdk.org/browse/JDK-8282467), commit [2903d59a](https://github.com/openjdk/jdk17u-dev/commit/2903d59a90c66481fd57dacb3341f3f3315f5be3) from the [openjdk/jdk17u-dev](https://git.openjdk.org/jdk17u-dev) repository.
> 
> The commit being backported was authored by Goetz Lindenmaier on 8 Jun 2022 and had no reviewers.
> 
> Thanks!

Christoph Langer has updated the pull request incrementally with two additional commits since the last revision:

 - fix cast
 - Add cast to fegetround
   
   Should fix build errors in linuxppc64le crossbuild

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

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/1869/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/1869/files/1350be98..b29848e8

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1869&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1869&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1869.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/1869/head:pull/1869

PR: https://git.openjdk.org/jdk11u-dev/pull/1869