[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z] garbage collection     Parrot          PMC and  gc_debug opcode  gcd opcode  2nd  ge opcode  2nd  general purpose stack  get_bool vtable method  getfile opcode  getline opcode  getpackage opcode  getprop opcode  2nd  global instruction (IMCC)  goto command (IMCC)  2nd  grammars and rules  greater-than operator (>, gt)  greater-than-or-equal operator (>=, ge)  gt opcode  2nd