[roll] Roll fuchsia [fbl] Fix FakeCallable to compile with C++20

If you try to compile the tree with -std=c++20, one of the first hurdles
you run into is fbl refusing to compile wherever fbl::Function is used
because it is only used for sizeof and doesn't have a call operator.

However, after consulting some C++ experts, it sounds like instantiating
the call operator is perfectly legal for the compiler to ask for based
on how things are now, and it's just that C++20 mode happens to be a bit
stricter (i.e. according to the standard this was always wrong).

Compiler errors are never fun, so let's nip this in the bud since it's
used so many places. Unfortunately it can't be constexpr because of some
stuff in zxtest, but since it's just a declaration you should get a link
error if anyone actually tries to use it.

TEST: no behavior change
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/459940
Original-Revision: 70f6c1a20d3f7369ee3e7eeeabe6dd5addda2fd6
GitOrigin-RevId: 28327a8994172c4b1034c9f4708f17204c5c56fc
Change-Id: Ic233ce2db1846e4a9b902c8e65c0b96492c16cc7
1 file changed
tree: 480e5ece54c7586e508cb00e81bbebdc33389795
  1. garnet/
  2. infra/
  3. peridot/
  4. third_party/
  5. topaz/
  6. zircon/
  7. flower
  8. jiri.lock
  9. minimal
  10. prebuilts
  11. README.md
  12. stem
  13. test_durations
README.md

Integration

This repository contains Fuchsia's Global Integration manifest files.

Making changes

All changes should be made to the internal version of this repository. Our infrastructure automatically updates this version when the internal one changes.

Currently all changes must be made by a Google employee. Non-Google employees wishing to make a change can ask for assistance via the IRC channel #fuchsia on Freenode.

Obtaining the source

First install Jiri.

Next run:

$ jiri init
$ jiri import minimal https://fuchsia.googlesource.com/integration
$ jiri update

Third party

Third party projects should have their own subdirectory in ./third_party.