stage2 tests: fix missing 'pub' in one of the test cases

Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen

stage2: fix deletion of Decls that get re-referenced

std: update freebsd bits to new builtin

std.fmt: fix regressions from master

Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen

stage2: skip recursion test on some hosts

stage2: fix crash in switch compile error

Sema: use a hash map for ZIR->AIR mapping

stage2: update `@import("builtin")` API usage

remove separate issues from my branch todo file

behavior tests: re-enable commented out test

stage2: get rid of NameHash

stage2: get rid of DeclRef

stage2: get rid of failed_root_src_file

test runner: prepare stage2 workaround

stage2: test cases take advantage of `pub fn main` support

std: update regarding std.builtin reorganization

update langref, compile-error tests, safety tests

std: `@import("builtin").StackTrace` -> `std.builtin.StackTrace`

compiler-rt: fix usage of builtin

link/Elf: remove unintended link again libunwind

link/MachO: bring in some of the Elf logic

stage2: avoid calling freeDecl when hasCodeGenBits == false

stage2: add some debug logs for when link functions are called

stage2: fix error message coloring

MachO/DebugSymbols: fix debug line offset

linker: update MachO DebugSymbols to use the new line/column Decl API

Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen

cmake: remove deleted file

Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen

stage2: remove SPU Mark II backend

stage2: omit Decl compile errors from failed AstGen files

codegen: implement const value rendering for ints <= 64 bits

stage2: compile log stores node offset

stage2: improve Decl dependency management

stage2: update test cases to improved source locations

AstGen: add compile error for decl name conflicts

std: dragonfly: fix duplicate definition of sockaddr_storage

stage2: fix tests expected values

Sema: remove compile error for comptime function calls

CLI repl: "run" command handles cross compiled binaries

link: fix memory leak of system_libs

link/MachO: fixes to debug symbols

AstGen: fix elision of store_to_block_ptr for condbr

Sema: detect and skip over elided instructions

stage2: fix test cases to add `pub` on exported _start fn

stage2: fix source location of Decl compile errors

stage2: build and provide libunwind when compiling for native libc

stage2: fix handling of "prev successful ZIR"

std: fix redundant comptime keywords

Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen

Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen

stage2: more Decl lifetime fixes

stage2: improve Decl lifetime management

Sema: implement duplicate enum tag compile error

stage2: lookupIdentifier can return error.AnalysisFailed

stage2: better handling of file-level compile errors across updates

stage2: update tests now that structs have fully qualified names

C backend: fix emitting '$' in identifier names

AstGen: support emitting multiple compile errors

stage2: add `owns_tv` flag to `Module.Decl`

stage2: struct, union, enum, opaque, error sets get better names

stage2: type declarations ZIR encode AnonNameStrategy

stage1: ignore enum ContainerLayout for comptime memory purposes

stage2 test harness: report multiple failures

Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen

stage2: fully qualified names and better anonymous names

Sema: fix `@setEvalBranchQuota` incorrectly requiring a function body

AstGen: fix incorrect logic for adding implicit return instruction

Type: fix abiAlignment calculation for unions

Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen

stage2: fix struct inits not getting fields resolved

ZIR: implement iteration over switch instructions

std: start code on linux when -lc also expands stack size

std: start code increases stack size as appropriate on linux

stage2: fix stack overflow in `@setEvalBranchQuota` test case

stage2: implement global variables

stage2: no '$' in anonymous decl names

stage2: implement extern functions

Sema: support enough to check main calling convention via `@typeInfo`

Sema: implement `@typeInfo` for functions

stage2: CBE tests `pub export` instead of `export` main

stage2: fix compile errors in test harness

CLI: add an update-and-run cmd and make enter re-run last cmd

stage2: wire up outdated/deleted decl detection

CLI: add 'run' command to the repl

std.ArrayHashMap: ensureUnusedCapacity and ensureTotalCapacity

stage2: fix contents hash computation

stage2: mapping old to new ZIR recursively

std.ArrayList: add clearRetainingCapacity and clearAndFree

stage2: add `zig changelist` debug command

std: fix compile errors found by stage2

Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen

Sema: restore the extern lib name functionality

stage2: test coverage for inline asm return type not type

Sema: implement error sets

stage2: fix "other symbol here" error note

stage2: fix structs and enums setting wrong owner_decl

build.zig: add -Dmem-leak-frames option