test/link/elf: make .eh_frame relocatable test also verify COMDATs we emit

elf: fix overflowing designated capacity when writing COMDAT groups

elf: add SHF_INFO_LINK flag to any emitted SHT_RELA section

elf: format shdr flags when dumping state

elf: write out COMDAT groups to file

elf: init output COMDAT group sections

elf: separate logic for reseting shdr indexes into a separate fn

test/link/elf: fix .eh_frame test

elf: correctly format output .eh_frame when emitting relocatable

elf: emit .rela.eh_frame section contents

elf: calculate required size for .rela.eh_frame

elf: track .rela.eh_frame section and emit .eh_frame section symbol

test/link/elf: verify we can output a valid relocatable with .eh_frame section

elf: misc fixes

elf: fix 32bit build

elf: test emitting relocatable

elf: emit SHN_COMMON symbols in -r mode

elf: streamline codepaths for different linker modes (object, ar, exe/dyn)

elf: LLVM emits relocs to undef local symbols - color me surprised!

elf: adjust r_addend with offset of the original input section ref'd via STT_SECTION

elf: claim unresolved dangling symbols as undef externs in -r mode

elf: reference .rela sections via output section index

elf: actually track output symtab index of symbols

elf: allocate alloc sections when emitting relocatable

elf: emit .rela.eh_frame section header if required

elf: create link between .rela and output section

elf: update .rela section sizes

elf: generate section symbols when writing symtab

elf: create skeleton of required changes for supporting -r mode

Merge pull request #17692 from kcbanner/struct_field_init_pass

Sema: emit @intCast safety check correctly for vectors

Sema: allow destructuring vectors

Merge pull request #17873 from ziglang/elf-archive

tests: skip native CPU std tests on Windows

langref: fix malloc return type

x86_64: fix passing register-sized payload as non-reigster-sized union

Sema: emit error when pointer to extern function is called

frontend: fix -fsingle-threaded default detection logic

Merge pull request #17871 from jacobly0/x86_64

Merge pull request #17815 from Luukdegram/wasm-no-entry

io_uring: add multishot accept operation

Sema: fix error notes with wrong extern type

Sema: fix memory leak in zirTypeInfo

Merge pull request #17866 from ziglang/reduce-inline-import

Merge pull request #17844 from ziglang/elf-object

Merge pull request #17852 from ziglang/zig-reduce

Merge pull request #17788 from jacobly0/x86_64

zstandard: fix incorrect RLE decompression into ring buffer

frontend: rip out Decl dependencies

Sema: use correct error bit length when emitting error_set_has_value safety checks

std.Atomic: remove unnecessary `@ptrCast` (#17825)

dont assume apple chips are macos exclusive

start.zig: Replace kernel32 usage with ntdll

mingw-w64: add shcore def files

start: Make wWinMain nCmdShow setting match Windows better

Merge pull request #17819 from Luukdegram/wasm-bitcast-fix

print_zir: fix crash in writeRestoreErrRetIndex

std.os.windows: remove unnecessary `@ptrCast` (#17816)

CI: disable MSVC C backend checks

Fix regressing #17290 from #17734

std.http: account for renames in docs

Use ArenaAllocator.reset in MemoryPool

Merge pull request #17802 from jacobly0/read-write-int

std.fs: remove unnecessary `@ptrCast` (#17805)

Merge pull request #17797 from squeek502/utf16-ascii-fast-path

Merge pull request #17791 from ziglang/elf-object

std/Thread: remove unnecessary `@ptrCast` (#17766)

Add compile error test case for union layout depending on pointer alignment

sema: when guessing union alignment, save the result and check if the guess was correct

sema: Add union alignment resolution

langref: clarify struct memory layout

autodoc: Some support for field_call (#16853)

Fix http.Headers.initList

Merge pull request #17773 from ziglang/elf-exports

Fix hasRuntimeBitsAdvanced lazy case for pointers and optionals

Merge pull request #17759 from jacobly0/x86_64

std.os.windows additions and fixes

std: delete psapi, gdi32, and winmm

Merge pull request #17727 from ziglang/elf-memory-deferred

delete std.os.windows.user32

Merge pull request #17762 from ziglang/zir-index-type-safety

frontend: make Decl.zir_decl_index typed

compiler_rt/emutls: remove unnecessary `@ptrCast` (#17755)

Sema: do not assume switch item indices align with union field indices

Merge pull request #17747 from ziglang/organize-behavior-tests

Doc: elaborate on Slice section

Merge pull request #17735 from ziglang/export-anon

std.json: Parse -0 as a float instead of an integer (#17729)

Update slice_sentinel comment

Update comment on while

Merge pull request #17716 from jacobly0/x86_64

GenericReader error set fixes

Merge pull request #17734 from joadnacer/iouring-update

std.http.Client: add proxy scheme guessing, fix typo

std.target: bump some OS max versions

Step.Options: `@typeName` gives a fully qualified name so the test needs to reflect that

Merge pull request #17690

Merge pull request #17699 from ziglang/elf-better-alloc

Merge pull request #17706 from ziglang/elf-error-tests

Update comment on for_range in Ast