Vector declaration syntax

1+ 
1? 
1 type_qualifier
1 storage_class_specifier
2 vector
2 __vector
3.0 bool
3.0 signed
3.0 unsigned
3.1 char
3.1 short
3.1.1? 
3.1.1 int
3.1 int
3.1 long
3.1.1? 
3.1.1 int
3 pixel
3 __pixel
3 float