[llvm] [Verifier] Allow too big unused sectioned global variables with local linkage (PR #212733)

[Antonio Frighetto via llvm-commits]

antoniofrighetto wrote:

> The current implementation of the Clang AST embedding has a special path for WASM that embeds the data as a metadata node

In an offline discussion with Eric, I was indeed going to ask whether we could have ObjectFilePCHContainerWriter emit the serialized AST directly through the MC layer instead :) The prototype looks reasonable to me at a first glance.

https://github.com/llvm/llvm-project/pull/212733