Bug 128864 does not depend on any bugs.

Bug 128864 blocks 4 bugs:

•    128864: Vector with inline capacity should work with non-PODs [RESOLVED FIXED; assigned to fpizlo]
  •    128795: FTL should inline polymorphic heap accesses [RESOLVED FIXED; assigned to fpizlo]
    •    112840: Use LLVM as a backend for the fourth-tier DFG JIT (a.k.a. the FTL JIT) [RESOLVED FIXED; assigned to fpizlo]
      •    132356: Continue to expand FTL JIT coverage [NEW; assigned to fpizlo]
      •    112836: JSC should be a quadruple-tier VM [RESOLVED FIXED; assigned to fpizlo]