abiType: support pointer

cl/_testgo/strucintf/in.go

@@ -1,20 +1,19 @@
 package main
 
 import (
-	"github.com/goplus/llgo/c"
 	"github.com/goplus/llgo/cl/internal/foo"
 )
 
 func main() {
 	bar := foo.Bar()
 	if x, ok := bar.(struct{ V int }); ok {
-		c.Printf(c.Str("%d\n"), x.V)
+		println(x.V)
 	} else {
-		c.Printf(c.Str("Bar: not ok\n"))
+		println("Bar: not ok")
 	}
 	if x, ok := foo.F().(struct{ v int }); ok {
-		c.Printf(c.Str("%d\n"), x.v)
+		println(x.v)
 	} else {
-		c.Printf(c.Str("F: not ok\n"))
+		println("F: not ok")
 	}
 }