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

#KT-5362 Fixed
#KT-8814 Fixed

compiler/testData/diagnostics/tests/regressions/kt5362.kt

@@ -0,0 +1,30 @@
+// KT-5362 Compiler crashes on access to extension method from nested class
+class Outer {
+    class Nested{
+        fun foo(s: String) = s.<!UNRESOLVED_REFERENCE!>extension<!>()
+    }
+
+    private fun String.extension(): String = this
+}
+
+// EA-64302 - UOE: CodegenContext.getOuterExpression
+fun Activity.toast() = Unit
+class Activity(){
+    class Fragment{
+        fun call() = <!UNRESOLVED_REFERENCE_WRONG_RECEIVER!>toast<!>()
+    }
+}
+
+// KT-8814 No error in IDE for invalid invoke of OuterClass.()->Unit in static nested class
+public class Manager {
+    fun task(callback: Manager.() -> Unit): Task {
+        val task = Task(callback)
+        return task
+    }
+
+    class Task(val callback: Manager.() -> Unit) : Runnable {
+        override public fun run() {
+            <!MISSING_RECEIVER!>callback<!>() // Manager is not accessible here, but no error is shown
+        }
+    }
+}

compiler/testData/diagnostics/tests/regressions/kt5362.txt

@@ -0,0 +1,51 @@
+package
+
+internal fun Activity.toast(): kotlin.Unit
+
+internal final class Activity {
+    public constructor Activity()
+    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
+
+    internal final class Fragment {
+        public constructor Fragment()
+        internal final fun call(): [ERROR : Error function type]
+        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
+    }
+}
+
+public final class Manager {
+    public constructor Manager()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    internal final fun task(/*0*/ callback: Manager.() -> kotlin.Unit): Manager.Task
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+
+    internal final class Task : java.lang.Runnable {
+        public constructor Task(/*0*/ callback: Manager.() -> kotlin.Unit)
+        internal final val callback: Manager.() -> kotlin.Unit
+        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*/ fun run(): kotlin.Unit
+        public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    }
+}
+
+internal final class Outer {
+    public constructor Outer()
+    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
+    private final fun kotlin.String.extension(): kotlin.String
+
+    internal final class Nested {
+        public constructor Nested()
+        public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+        internal final fun foo(/*0*/ s: kotlin.String): [ERROR : Error function type]
+        public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+        public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    }
+}