Do not consider fake variables for objects in :: resolution

The main change is in
NewResolutionOldInference.ResolutionKind.CallableReference, where
createVariableProcessor creates a processor which no longer lists objects

 #KT-12322 Fixed

compiler/testData/diagnostics/tests/callableReference/resolve/noFakeDescriptorForObject.kt

@@ -0,0 +1,11 @@
+// !CHECK_TYPE
+// KT-12322 Overload resolution ambiguity with constructor references when class has a companion object
+
+class Foo {
+    companion object
+}
+
+fun test() {
+    val a = ::Foo
+    checkSubtype<() -> Foo>(a)
+}

compiler/testData/diagnostics/tests/callableReference/resolve/noFakeDescriptorForObject.txt

@@ -0,0 +1,17 @@
+package
+
+public fun test(): kotlin.Unit
+
+public final 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
+
+    public companion object Companion {
+        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
+        public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    }
+}