[cfe-commits] [PATCH] Make behavior of RecordLayoutBuilder overridable

[Charles Davis]

This patch makes some methods of RecordLayoutBuilder virtual, so they
can be overridden for a custom C++ ABI (or possible other purposes).
Right now, I don't see any significant differences between the Microsoft
and Itanium ABIs, so I haven't added a class for the MS ABI yet.

If you prefer, I can defer this until I really need it.

Chip