v3 parser: add some more test cases (functions) (#2422)

* [v3] add test case for parser (create struct from func)

* [v3] add another test case for parser (func in other pkg) + misc

v3/internal/parser/testdata/variable_single_from_other_function/main.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	_ "embed"
+	"github.com/wailsapp/wails/v3/internal/parser/testdata/variable_single_from_other_function/services"
+	"log"
+
+	"github.com/wailsapp/wails/v3/pkg/application"
+)
+
+// GreetService is great
+type GreetService struct {
+	SomeVariable int
+	lowerCase    string
+	target       *Person
+}
+
+type Person struct {
+	Name    string
+	Address *services.Address
+}
+
+// Greet does XYZ
+func (*GreetService) Greet(name string) string {
+	return "Hello " + name
+}
+
+// NewPerson creates a new person
+func (*GreetService) NewPerson(name string) *Person {
+	return &Person{Name: name}
+}
+
+func main() {
+	otherService := services.NewOtherService()
+	app := application.New(application.Options{
+		Bind: []interface{}{
+			&GreetService{},
+			otherService,
+		},
+	})
+
+	app.NewWebviewWindow()
+
+	err := app.Run()
+
+	if err != nil {
+		log.Fatal(err)
+	}
+
+}

v3/internal/parser/testdata/variable_single_from_other_function/services/other.go

@@ -0,0 +1,26 @@
+package services
+
+// OtherService is a struct
+// that does things
+type OtherService struct {
+	t int
+}
+
+type Address struct {
+	Street  string
+	State   string
+	Country string
+}
+
+// Yay does this and that
+func (o *OtherService) Yay() *Address {
+	return &Address{
+		Street:  "123 Pitt Street",
+		State:   "New South Wales",
+		Country: "Australia",
+	}
+}
+
+func NewOtherService() *OtherService {
+	return &OtherService{}
+}