Rafael Espindola a6bc23879a Add a RAW mode to StringTableBuilder.
In this mode it just tries to tail merge the strings without imposing any other
format constrains. It will not, for example, add a null byte between them.

Also add support for keeping a tentative size and offset if we decide to
not optimize after all.

This will be used shortly in lld for merging SHF_STRINGS sections.

llvm-svn: 251153
2015-10-23 21:48:05 +00:00
..