RFR: 8357579: Compilation error: first argument in call to 'memset' is a pointer to non-trivially copyable type [v4]

[Jan Kratochvil]

> With clang-20 using --with-toolchain-type=clang resolveFieldEntry.cpp and resolveMethodEntry.cpp break the build with similar warnings like:
> 
> src/hotspot/share/oops/resolvedFieldEntry.cpp:49:10: error: first argument in call to 'memset' is a pointer to non-trivially copyable type 'ResolvedFieldEntry' [-Werror,-Wnontrivial-memcall]
>    49 |   memset(this, 0, sizeof(*this));
>       |          ^
> src/hotspot/share/oops/resolvedFieldEntry.cpp:49:10: note: explicitly cast the pointer to silence this warning
>    49 |   memset(this, 0, sizeof(*this));
>       |          ^
>       |          (void*)
> 
> The patch follows the suggested fix.

Jan Kratochvil has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains six additional commits since the last revision:

 - Use padding fields for ResolvedFieldEntry and ResolvedMethodEntry
 - Merge branch 'master' into clangmemset
 - Merge branch 'master' into clangmemset
 - Revert "8361288: Fix build of JTReg: wget exited with exit code 4"
   
   This reverts commit 6e6b8f6a26f8e555f1e70544546b92bbafcae6cc.
 - 8361288: Fix build of JTReg: wget exited with exit code 4
 - 8357579: Compilation error: first argument in call to 'memset' is a pointer to non-trivially copyable type

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/26098/files
  - new: https://git.openjdk.org/jdk/pull/26098/files/3745a8af..3d4eccc1

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26098&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26098&range=02-03

  Stats: 14222 lines in 372 files changed: 8523 ins; 4457 del; 1242 mod
  Patch: https://git.openjdk.org/jdk/pull/26098.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26098/head:pull/26098

PR: https://git.openjdk.org/jdk/pull/26098