mruby/mruby — pull request #2558 by chasonr (2014-08-23 22:41:22+00:00)
Title: Keep signs of small Fixnums to right of + and -

Resolve issue #2557: When an OP_ADDI or OP_SUBI instruction must convert to a method call, check syms[GETARG_B(i)] for the method being called. If the method does not match the instruction, the RHS is negative.