keep type information when coercing C complex to Python complex
keep type information when coercing C complex to Python complex

ChristopherHogan/cython,da-woods/cython,cython/cython,da-woods/cython,scoder/cython,cython/cython,da-woods/cython,cython/cython,scoder/cython,scoder/cython,ChristopherHogan/cython,ChristopherHogan/cython,cython/cython,da-woods/cython,scoder/cython