With MSVC, file needs to be compiled with /BIGOBJ

MSVC, by default, limits the number of sections generated by a single
translation unit to 2^16.  In a debug build, each function or method
can require 4 sections, so it's not uncommon to hit it.

I saw the problem when building tests for LLDB (but, interestingly, not
for LLDB itself).

Differential Revision: https://reviews.llvm.org/D83991