Function test2

tests/TestImplicitArray.cpp:42–43

const char	*testArrays = 
"import std.math;\r\n\
int test(int a, int b, int c){ return a*b+c; }\r\n\
float test2(float4 b){ return b.x-b.y; }\r\n\
int test3(char[] ch){ return ch.size; }\r\n\
\r\n\
int kl = test(2, 3, 4);\r\n\