Function luaH_resize

** Resize table 't' for the new given sizes. Both allocations (for ** the hash part and for the array part) can fail, which creates some ** subtleties. If the first allocation, for the hash part, fails, an ** error is raised and that is it. Otherwise, it copies the elements from ** the shrinking part of the array (if it is shrinking) into the new ** hash. Then it reallocates the array part. If th