macho: clean up logic for deciding if needs __stub_helper

macho: add misc fixes targeting macos 11

build: bump max_rss for building the compiler again

macho: set filename as ident in code signature

macho: skip -r when single input object file

macho: exclude symbols from empty sections when parsing unwind info

macho: synthesise unwind records from __eh_frame even if no __compact_unwind

macho: allocate segments in sep step and tweak sorting logic

build: bump max_rss for building the compiler again

test/link/macho: ensure we do not run testStackSize on foreign host

macho: fix 32bit compilation issues

macho: do not enforce platform check for now

build: bump maxrss

macho: ensure we zero-out regions after copying them over

macho: actually lower TLS variables

macho: fix wrong symbol type for TLV vars

x86_64: emit MachO TLV sequence

x86_64: save TLS to stack for MachO

macho: save TLS variables in ZigObject

macho: get start index of Zig sections when allocating other sections

macho: prep for lowering TLS variables

macho: get rid of allocateSegments

macho: move incr Zig sections in file if overlap nonincr sections

macho: refactor segment creation logic

macho: fix not resetting __got_zig sect index after sorting headers

macho: resolve relocs pointing at __got_zig

macho: re-read atom code from ZigObject when resolving relocs

macho: reserve space for __got_zig rebase opcodes

macho: allocate __LINKEDIT in a separate pass

macho: init linkedit segment separately

macho: allocate sections and segments that need it

macho: fix '_' prefixing rules for exports

macho: again fix symbol index dereference in codegen wrt ZigObject

macho: fix symbol index dereference in codegen wrt ZigObject

macho: implement resolveSymbols in ZigObject

macho: set atom_index for newly created Atom in ZigObject

macho: let us dump some state and debug!

macho: implement ZigObject.flushModule

codegen: implement more missing bits

codegen: re-implement enough of codegen to error out instead panic

codegen: re-enable MachO support in genDeclRef

macho: fill the rest of ZigObject

macho: fill in more blanks in ZigObject

macho: fill in more blanks in ZigObject

macho: implement growSection mechanism

macho: implement more self-hosted primitives

macho: set alignment of pre-allocated sections

macho: init metadata for incremental linking

macho: add __zig_got section implementation

macho: re-implement updateDeclCode

macho: init metadata and partially implement updateDecl

macho: create Atom for Decl in ZigObject

macho: split symbol.flags.got into needs_got and has_got

macho: forward parsed -compatibility_version to the linker

macho: patch up more holes with ZigObject

macho: move all unimplemented function stubs into ZigObject

macho: introduce ZigObject

test/link/macho: migrate all tests to the new test matrix

test/link/macho: upgrade tbdv3 test

test/link/macho: upgrade unwind info tests

test/link/macho: test stacksize option

test/link/macho: upgrade search strategy test

test/link/macho: test re-exports in zig

test/link/macho: remove converted standalone tests

test/link/macho: test pagezero size

test/link/macho: revert testing objc msgsend stubs - no way of enabling in clang

test/link/macho: test objc msgsend selector stubs

test/link/macho: use .root_module. instead of wrappers where possible

test/link/macho: test force-loading objects containing ObjC from archives

test/link/macho: test no exports in a dylib

test/link/macho: test attribute "used" on vars in presence of dead_strip

test/link/macho: upgrade strict validation of layout test

test/link/macho: upgrade entry and entry in archive tests

test/link/macho: upgrade empty object test

test/link/macho: upgrade dylib test

macho: remove all rpath parsing from the linker

macho: print all definitions of symbols when printing duplicates

test/link/macho: upgrade dead_strip_dylibs test

test/link/macho: test -r mode

test/link/macho: test tentative definitions

test/link/macho: upgrade tls test

test/link/macho: test thunks on arm64

test/link/macho: test twolevel namespacing

test/link/macho: test large .tbss section

test/link/macho: test -u flag handling (forceUndefinedSymbol)

test/link/macho: upgrade weak framework test

test/link/macho: upgrade weak library test

test/link/macho: test weak binding

test/link/macho: upgrade and migrate headerpad test

test/link/macho: test setting correct weak* flags in the header

test/link/macho: test hello world in C

test/link/macho: test hello world in Zig

test/link/macho: test for correct handling of large __bss sections

test/link/macho: test for correct handling of __mh_execute_header symbol

test/link/macho: upgrade and migrate needed_library test

test/link/link: pass build options to elf and macho tests

test/link/macho: test segment boundary symbols

test/link/macho: fix naming in entry-in-dylib test

test/link/macho: upgrade and migrate dead_strip test

test/link/elf: make invalid input file test less janky