entc/gen: fix name clash in entc template when entity name has initials as tx (#2633)

examples/start/ent/car.go

@@ -127,11 +127,11 @@ func (c *Car) Update() *CarUpdateOne {
 // Unwrap unwraps the Car entity that was returned from a transaction after it was closed,
 // so that all future queries will be executed through the driver which created the transaction.
 func (c *Car) Unwrap() *Car {
-	tx, ok := c.config.driver.(*txDriver)
+	_tx, ok := c.config.driver.(*txDriver)
 	if !ok {
 		panic("ent: Car is not a transactional entity")
 	}
-	c.config.driver = tx.drv
+	c.config.driver = _tx.drv
 	return c
 }
 

examples/start/ent/group.go

@@ -100,11 +100,11 @@ func (gr *Group) Update() *GroupUpdateOne {
 // Unwrap unwraps the Group entity that was returned from a transaction after it was closed,
 // so that all future queries will be executed through the driver which created the transaction.
 func (gr *Group) Unwrap() *Group {
-	tx, ok := gr.config.driver.(*txDriver)
+	_tx, ok := gr.config.driver.(*txDriver)
 	if !ok {
 		panic("ent: Group is not a transactional entity")
 	}
-	gr.config.driver = tx.drv
+	gr.config.driver = _tx.drv
 	return gr
 }
 

examples/start/ent/user.go

@@ -124,11 +124,11 @@ func (u *User) Update() *UserUpdateOne {
 // Unwrap unwraps the User entity that was returned from a transaction after it was closed,
 // so that all future queries will be executed through the driver which created the transaction.
 func (u *User) Unwrap() *User {
-	tx, ok := u.config.driver.(*txDriver)
+	_tx, ok := u.config.driver.(*txDriver)
 	if !ok {
 		panic("ent: User is not a transactional entity")
 	}
-	u.config.driver = tx.drv
+	u.config.driver = _tx.drv
 	return u
 }