Change outer scope for nested class and object -- removed implicit outer class receiver.

#KT-5362 Fixed
#KT-8814 Fixed

compiler/testData/diagnostics/tests/classObjects/ClassObjectCannotAccessClassFields.kt

@@ -4,6 +4,6 @@ class A() {
     val x = 1
 
     companion object {
-        val y = <!INACCESSIBLE_OUTER_CLASS_EXPRESSION!>x<!>
+        val y = <!UNRESOLVED_REFERENCE!>x<!>
     }
-}
+}

compiler/testData/diagnostics/tests/classObjects/ClassObjectCannotAccessClassFields.txt

@@ -9,7 +9,7 @@ internal final class A {
 
     public companion object Companion {
         private constructor Companion()
-        internal final val y: kotlin.Int = 1
+        internal final val y: [ERROR : Type for x]
         public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
         public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String

compiler/testData/diagnostics/tests/classObjects/classObjectHeader.kt

@@ -4,6 +4,6 @@ open class ToResolve<SomeClass>(<!UNUSED_PARAMETER!>f<!> : (Int) -> Int)
 fun testFun(<!UNUSED_PARAMETER!>a<!> : Int) = 12
 
 class TestSome<P> {
-    companion object : ToResolve<<!INACCESSIBLE_OUTER_CLASS_EXPRESSION!>P<!>>({testFun(it)}) {
+    companion object : ToResolve<<!UNRESOLVED_REFERENCE!>P<!>>({testFun(it)}) {
     }
 }

compiler/testData/diagnostics/tests/classObjects/classObjectHeader.txt

@@ -9,7 +9,7 @@ package test {
         public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
 
-        public companion object Companion : test.ToResolve<P> {
+        public companion object Companion : test.ToResolve<[ERROR : P]> {
             private constructor Companion()
             public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
             public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int

compiler/testData/diagnostics/tests/classObjects/resolveFunctionInsideClassObject.kt

@@ -4,6 +4,6 @@ class Test {
   fun test(): Int = 12
 
   companion object {
-    val a = <!INACCESSIBLE_OUTER_CLASS_EXPRESSION!>test()<!> // Check if resolver will be able to infer type of a variable
+    val a = <!UNRESOLVED_REFERENCE!>test<!>() // Check if resolver will be able to infer type of a variable
   }
 }

compiler/testData/diagnostics/tests/classObjects/resolveFunctionInsideClassObject.txt

@@ -11,7 +11,7 @@ package test {
 
         public companion object Companion {
             private constructor Companion()
-            internal final val a: kotlin.Int
+            internal final val a: [ERROR : Type for test()]
             public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
             public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
             public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String