gc successfully compiles the following program: ``` go package a var a = complex64(6)/774516156475830989403545856475830078125 ``` while both gccgo and go/types reject it with: ``` error: complex real part overflow 774516156475830989403545856475830078125 (untyped int constant) overflows complex64 ``` go version devel +40a1516 Fri Jul 3 03:08:40 2015 +0000 linux/amd64