Fix init tests

Author: natsukagami

tests/init/neg/inner1.scala

@@ -4,7 +4,7 @@ class Foo {
   val list = List(1, 2, 3) // error, as Inner access `this.list`
 
   val inner: Inner = new this.Inner // ok, `list` is instantiated
-  lib.escape(inner) // error
+  lib.escape(inner) // ok, can promote inner early
 
   val name = "good"
 

tests/init/neg/inner17.scala

@@ -5,7 +5,7 @@ class A {
     val a = f
   }
 
-  println(new B)              // error
+  println(new B)              // OK, can promote B early
 }
 
 class C extends A {

tests/init/neg/inner19.scala

@@ -14,6 +14,6 @@ class A {
 
 class B extends A {
   println((new O.B).f)
-  O.C(4)                // error
-  override val n = 50   // error
+  O.C(4)
+  override val n = 50   // error because line 16
 }