[FE 1.0] Check callable reference return type safety during resolution

^KT-51844
^KT-52503 Fixed

compiler/testData/diagnostics/tests/callableReference/kt52503.kt

@@ -0,0 +1,16 @@
+// FIR_IDENTICAL
+// WITH_STDLIB
+
+abstract class Foo
+
+object A {
+    fun Foo.contains(vararg xs: Int) = // 1
+        xs.forEach(this::<!EXTENSION_IN_CLASS_REFERENCE_NOT_ALLOWED!>contains<!>) // resolved to (2) in 1.7.0-RC, should be error "Type checking has run into a recursive problem"
+}
+
+fun Any.contains(vararg xs: Int) {} // 2
+
+fun box(): String {
+    object : Foo() {}.contains(1)
+    return "OK"
+}

compiler/testData/diagnostics/tests/callableReference/kt52503.txt

@@ -0,0 +1,19 @@
+package
+
+public fun box(): kotlin.String
+public fun kotlin.Any.contains(/*0*/ vararg xs: kotlin.Int /*kotlin.IntArray*/): kotlin.Unit
+
+public object A {
+    private constructor A()
+    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 fun Foo.contains(/*0*/ vararg xs: kotlin.Int /*kotlin.IntArray*/): kotlin.Unit
+}
+
+public abstract class Foo {
+    public constructor Foo()
+    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
+}