fix: handle method declaration with forward declared type

_test/method31.go

@@ -0,0 +1,29 @@
+package main
+
+import "fmt"
+
+var db dbWrapper
+
+type dbWrapper struct {
+	DB *cmap
+}
+
+func (d *dbWrapper) get() *cmap {
+	return d.DB
+}
+
+type cmap struct {
+	name string
+}
+
+func (c *cmap) f() {
+	fmt.Println("in f, c", c)
+}
+
+func main() {
+	db.DB = &cmap{name: "test"}
+	db.get().f()
+}
+
+// Output:
+// in f, c &{test}

interp/gta.go

@@ -125,6 +125,9 @@ func (interp *Interpreter) gta(root *node, rpath, pkgID string) ([]*node, error)
 				// Add a function symbol in the package name space
 				sc.sym[n.child[1].ident] = &symbol{kind: funcSym, typ: n.typ, node: n, index: -1}
 			}
+			if n.typ.incomplete {
+				revisit = append(revisit, n)
+			}
 			return false
 
 		case importSpec: