The builtin is documented to copy `count` elements, but the implementation
copies `count` bytes. Fix that.

Reviewers: cor3ntin, ojhunt

Pull Request: https://github.com/llvm/llvm-project/pull/140312

This patch implements the business logic for setupTemplateValue, which
was split from #133161. The implementation configures the relative path
relationships between the various HTML components, and prepares them
prior to their use in the generator.

Co-authored-by: Peter Chou <peter.chou@mail.utoronto.ca>

Split from #133161. This patch provides the implementation of a number
of extractValue overloads used with the different types of Info.

The new helper functions extract the relevant information from the
different *Infos and inserts them into the correct fields of the JSON
values that will be used with the specific Mustache templates, which
will land separately.

Co-authored-by: Peter Chou <peter.chou@mail.utoronto.ca>

This adds alignment support for GlobalOp, LoadOp, and StoreOp.

Tests which failed because cir.store/cir.load now print alignment were
updated with wildcard matches, except where the alignment was relevant
to the test. Tests which check for cir.store/cir.load in cases that
don't have explicit alignment were not updated.

New tests for alignment are alignment.c, align-load.c, and
align-store.c.

This is a follow on to 9b4de7 which handles the fixed vector cases. In
retrospect, this is simple enough if probably should have just been part
of the original commit, but oh well.

We've added a new macro for the unversioned `namespace std` cases in
#133009, but it seems we've missed a few places. This fixes the places I
just found.