[jdk17u-dev] RFR: 8294314: Minimize disabled warnings in hotspot [v5]

[Sergey Bylokhov]

> Hi all,
> 
> This pull request contains a backport of commit [7743345f](https://github.com/openjdk/jdk/commit/7743345f6f73398f280fd18364b4cea10a6b0f2f) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Magnus Ihse Bursie on 17 Oct 2022 and was reviewed by Erik Joelsson and Aleksey Shipilev.
> 
> The patch updates the code to handle certain warnings during compilation. It is part of the ongoing effort to migrate JDK 17 to the new toolchain, including Xcode 16, and will make further patches cleaner.
> 
> The patch is not clean because the next three are not in jdk17u:
>  - https://bugs.openjdk.org/browse/JDK-8286262 -> still need to disable [4996](https://github.com/openjdk/jdk17u-dev/pull/4143/commits/e1b33bcab3a09bcdf16ea6bd740d4ffbf00adaab) warning
>  - https://bugs.openjdk.org/browse/JDK-8293182 -> still need to disable [missing-field-initializers](https://github.com/openjdk/jdk17u-dev/pull/4143/commits/32855c2267dd796d82893f39e82592dc68fef3c6)
>  - https://bugs.openjdk.org/browse/JDK-8303805 -> still need to disable [strict-overflow](https://github.com/openjdk/jdk17u-dev/pull/4143/commits/9f8b0126e9c0d3f1a0e83a2fe722f3996c8dcb41)
> 
> The next two are are already in jdk17u so context a little bit different:
>  - https://bugs.openjdk.org/browse/JDK-8300169
>  - https://bugs.openjdk.org/browse/JDK-8319818
> 
> 
> Testing:
>  - github actions
>  - gcc: 7.3.1, 9.3.1, 10.5.0, 11.4.0, 11.5.0, 13.2.1 and 13.3.0
>  - xcode: 26, 26.0.1
>  - VS 2022

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

  Take care about recent integration of JDK-8294594 and JDK-8294591

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

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/4143/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/4143/files/fd674045..d4f4fb1d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4143&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4143&range=03-04

  Stats: 2 lines in 1 file changed: 0 ins; 2 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/4143.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/4143/head:pull/4143

PR: https://git.openjdk.org/jdk17u-dev/pull/4143