Egor Zhdan 96c8e2e88c [APINotes] For a re-exported module, look for APINotes in the re-exporting module's apinotes file ...

This upstreams https://github.com/apple/llvm-project/pull/8063.

If module FooCore is re-exported through module Foo (by using
`export_as` in the modulemap), look for attributes of FooCore symbols in
Foo.apinotes file.

Swift bundles `std.apinotes` file that adds Swift-specific attributes to
the C++ stdlib symbols. In recent versions of libc++, module std got
split into multiple top-level modules, each of them is re-exported
through std. This change allows us to keep using a single modulemap file
for all supported C++ stdlibs.

rdar://121680760

2024-03-28 12:59:57 +00:00

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