Integrate new result macros. (#1780) ...

* result: try out some experimental shenanigans

* result: sketch out some more shenanigans

* result: see what it looks like to convert kernel to use result conds instead of guards

* make rest of kernel use experimental new macro-ing

sm/tipc: ensure technical-correctness of sins (no page cost)

sm: save 0x5000 of memory by sinning

Minor header fixes to reduce parsing issues with Clang (#1700) ...

* Work around Clang's incomplete C++20 support for omitting typename

* vapours: fix Clang error about missing return in constexpr function

* stratosphere: fix call to non-constexpr strlen in constexpr function

strlen being constexpr is a non-compliant GCC extension; Clang
explicitly rejects it: https://reviews.llvm.org/D23692

* stratosphere: add a bunch of missing override specifiers

* stratosphere: work around Clang consteval bug

Minimal example: https://godbolt.org/z/MoM64v93M

The issue seems to be that Clang does not consider f(x) to be a
constant expression if x comes from a template argument that isn't
a non-type auto template argument (???)

We can work around this by relaxing GetMessageHeaderForCheck (by using
constexpr instead of consteval). This produces no functional changes
because the result of GetMessageHeaderForCheck() is assigned to a
constexpr variable, so the result is guaranteed to be computed
at compile-time.

* stratosphere: fix missing require clauses in definitions

GCC not requiring the require clauses to be repeated for member
definitions is actually a compiler bug:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96830

Clang rejects declarations with missing require clauses.

* Fix ALWAYS_INLINE_LAMBDA and parameter list relative order

While GCC doesn't seem to care about the position of the always_inline
attribute relative to the parameter list, Clang is very picky
and requires the attribute to appear after the parameter list
(and before a trailing return type)

* stratosphere: fix static constexpr member variable with incomplete type

GCC accepts this for some reason (because of the lambda?) but Clang
correctly rejects this.

tipc: enable named-thread dispatch

strat: fix some mitm server management logic

tipc/sm: update more fully for 13.0.0 changes

sm/tipc: minor cleanup

sm: update for 13.0.0, optimize layout to reduce storage size.

ams: allow bootloader to merely approximate correct target firmware

strat: use m_ for member variables

ams: replace most remaining operator & with std::addressof

sm: remove apm:p compatibility hack ...

Homebrew which would hang when doing this were compiled with libnx < 3.0.0.

Homebrew which is compiled with < 3.0.0 cannot send messages to sm, because
of the incorrect serialization problem (which required homebrew recompile when
12.0.0 released).

Thus, there is no case where this makes a difference.

strat: use ams::Main() instead of main(argc, argv)

strat: build sysmodules with -Wextra/-Werror

strat: prefer os::NativeHandle to Handle/svc::Handle where sensible

ams: the copyright^H^H^H^H^H^H^Hmplex plane is the algebraic closure of the reals

strat: automatic program id detection

os: adopt multiwait naming over waitable

stratosphere: use SdkMutex/SdkRecursiveMutex over Mutex

sm: lighten abort restrictions on mitm handle acquisition (closes #1528)

sm: update to excise unnecessary library code

tipc/sm: various fixes for issues

sm: reimplement using tipc instead of cmif (probably broken, untested)

kern: alleviate a little KPort pressure.

sm: fix abort on RegisterService while at port limit ...

closes #1382

result: always prefer diag::Abort to fatal

sm: supercede ams extension via DetachClient

strat: update for revised libnx weak alloc funcs

sm, spl: update to use new sf semantics