Sema: add and improve some callconv compile errors

x86_64: handle incoming stack alignment

x86_64,riscv64: fix incorrect `incoming_stack_alignment` handling

compiler_rt: remove bogus tests

llvm: fix lowering `arm_aapcs_vfp` functions

Zcu: correct `callconvSupported` for self-hosted aarch64

langref: update `enum_export_error.zig` for callconv changes

std: update uses of `.Inline` callconv

llvn: fix incorrect mips64 callconv handling

link.Dwarf: handle `avr_signal` and `avr_builtin` callconvs

std.Target: correct C callconv on hardfloat ARM

llvm: fix lowering of avr_interrupt and m68k_interrupt callconvs

std.builtin.CallingConvention: remove deprecated RISC-V privilege mode

compiler: avoid unreasonable eval branch quotas

std.builtin.CallingConvention: include exact architecture tags in comments

Sema: minor cleanup

cbe,translate-c: support more callconvs

std.builtin.CallingConvention: RISC-V `PrivilegeLevel` -> `PrivilegeMode`

link: add clarifying comment

std.builtin.CallingConvention: don't provide bogus `winapi` value

std.Target: rename `defaultCCallingConvention` and `Cpu.Arch.fromCallconv`

std.zig.render: fix `callconv(.Inline)` -> `inline fn` promotion

test: update for `CallingConvention` changes

compiler: remove @setAlignStack

std: update for new `CallingConvention`

stage1: update zig1.wasm

compiler: introduce new `CallingConvention`

incremental: disable flaky test

compiler: implement `@FieldType`

Merge pull request #21736 from alexrp/qemu-9.1

std.Target: Make Abi.default() more smarter.

Merge pull request #21610 from alexrp/riscv-abis

langref: update builtin variadic functions

Merge pull request #21726 from alexrp/target-api

fix compilation errors for fs and fs.Dir (#21643)

Merge pull request #21722 from mlugg/incremental

Merge pull request #21715 from alexrp/loongarch-porting

Merge pull request #21714 from alexrp/target-cpu-baseline

std.zig.target: Sort the target triple list in a more user-friendly way.

Sema: fail if analyzing return in `noreturn`-declared function before coercing `undefined`

std.MultiArrayList: add clear methods

Merge pull request #21682 from der-teufel-programming/remove-packedintarray

Rewrite bit_reader and bit_writer to take advantage of current zig semantics and enhance readability (#21689)

Merge pull request #21688 from Snektron/spirv-fix

Merge pull request #21686 from alexrp/glibc-fixes

implement packed struct equality (#21679)

std.Target.Query: fix compilation error (#21669)

Merge pull request #21681 from ziglang/reduce-flush

macho: create dummy atom of size 0 marking end of a section

Replace tidy with superhtml as HTML validator (#21664)

std.mem.readVarInt: assert ReturnType is large enough (#20946)

link: consolidate diagnostics

Merge pull request #21666 from ziglang/reduce-flush

cmake: correct PIE support detection, add error output for debugging

IoUring: fix an issue in tests where InvalidVersion might get thrown by skipKernelLessThan, due to some kernel versions not being SemVer compliant.

add loongarch valist support

Merge pull request #21654 from ziglang/embrace-path-abstraction

musl: Align _init/_fini symbols correctly on arm.

std.os.linux: Use the Thumb-specific syscall helpers for thumbeb too.

arch/aarch64/Mir: fix spelling (pseudo instead of psuedo)

no code owners

Sema: implement @splat for arrays

zig fetch: update saved dependency with resolved URL

Merge pull request #21629 from ziglang/elf-incr

Merge pull request #21644 from ziglang/macho-issue-21598

link.Elf.Object.initAtoms: reduce state access and indirection

Merge pull request #21640 from jacobly0/dwarf-progress

Merge pull request #21633 from ziglang/reduce-flush-logic

untangle skip conditions

revert disabling `aarch64` skip

fix `standalone/empty_env` test

stage2-wasm: airRem + airMod for floats

Merge pull request #21622 from mikdusan/bsd

Merge pull request #21618 from mlugg/validate-runtime-value

link.Elf: Fix page size calculation for more architectures.

Merge pull request #21611 from alexrp/target-abi-default

Merge pull request #21615 from linusg/panic-uefi

Merge pull request #21614 from alexrp/target-avr-align

Merge pull request #21499 from alexrp/loongarch-gnusf

Merge pull request #21597 from achan1989/issue_14324

Build: Add `option(LazyPath, ...)` support

Merge pull request #21608 from mikdusan/ppc64

Merge pull request #21605 from alexrp/ohos-stuff

Merge pull request #21587 from alexrp/hexagon-porting

Merge pull request #21518 from mlugg/incremental-ci

Merge pull request #21037 from alexrp/target-dyld

Merge pull request #21331 from bobf/std-meta-DeclEnum-empty-struct

Merge pull request #21581 from zigmd/fix-typo-in-segset_t

Merge pull request #21574 from alexrp/llvm-sub-arch

std.os.windows.ReadFile: handle ERROR_LOCK_VIOLATION

Merge pull request #21595 from alexrp/objcopy-seg-paddr

Merge pull request #21591 from patrickwick/issue-19009

Merge pull request #21593 from alexrp/dlopen-null

remove `@fence` (#21585)

std.Target: add missing propeller switch prongs

Merge pull request #21532 from marler8997/putDependencyCacheInGraph

Adds new cpu architectures propeller1 and propeller2. (#21563)

Remove old deprecated symbols in std (#21584)

Merge pull request #21572 from alexrp/tests-llvm-targets

Merge pull request #21578 from alexrp/s390x-porting