maul-esel/AutoHotkey_L — comment on commit ecca181c61409bd4f1d1b9fc963f1136bf499c8e
File:  line 0
By Lexikos:

In theory, performance would be improved and memory fragmentation reduced if the array was reallocated in increments greater than 1, similar to the way the mFunc and mVar arrays are reallocated. The main point is to leave it unallocated until it's actually used, since most scripts won't use it.