def p_primary_expression(self, p):
        if p[1] == '(':
            p[0] = p[2]
        else:
            p[0] = p[1]
Convert LLVM 3.7 IR for LLVM 3.4.
dataset/ETHPy150Open ardekantur/pyglet/tools/wraptypes/preprocessor.py/ConstantExpressionGrammar.p_primary_expression--crossover with--dataset/ETHPy150Open numba/numba/numba/cuda/cudadrv/nvvm.py/llvm37_to_34_ir