demo: getcwd; abi.TypeName fix: error interface is public

_demo/getcwd/getcwd.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/os"
+)
+
+func main() {
+	wd := os.Getcwd(c.Alloca(os.PATH_MAX), os.PATH_MAX)
+	c.Printf(c.Str("cwd: %s\n"), wd)
+}

ssa/abi/abi.go

@@ -154,7 +154,8 @@ func (b *Builder) TypeName(t types.Type) (ret string, pub bool) {
 		return fmt.Sprintf("[%v]%s", t.Len(), ret), pub
 	case *types.Named:
 		o := t.Obj()
-		return "_llgo_" + TypeName(o), o.Exported()
+		pkg := o.Pkg()
+		return "_llgo_" + FullName(pkg, o.Name()), (pkg == nil || o.Exported())
 	case *types.Interface:
 		if t.Empty() {
 			return "_llgo_any", true