Name section

[tlively]

TODO: Figure out how the name section should work with conditional sections. I expect we will just want to allow multiple name sections, but we need specific text describing how that will work.

[xtuc]

I would assume the name section to be flat regardless of conditional code/types. At least to me, it's difficult to imagine how conditional naming would work at a source level.

For instance:

__attribute__((target("arch=atom")))
void foo() {}
__attribute__((target("default")))
void foo() {}

foo will endup at the same funciton index? Also depends on the outcome of #14