If all candidates are invisible then don't report ambiguity

#KT-10045 Fixed

compiler/testData/diagnostics/tests/overload/onlyPrivateOverloadsDiagnostic.kt

@@ -0,0 +1,12 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+class A {
+    private fun foo(i: Int) {}
+    private fun foo(s: String) {}
+}
+
+fun test(a: A) {
+    a.<!INVISIBLE_MEMBER!>foo<!>(3)
+    a.<!NONE_APPLICABLE!>foo<!>()
+}
+

compiler/testData/diagnostics/tests/overload/onlyPrivateOverloadsDiagnostic.txt

@@ -0,0 +1,12 @@
+package
+
+public fun test(/*0*/ a: A): kotlin.Unit
+
+public final class A {
+    public constructor A()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    private final fun foo(/*0*/ i: kotlin.Int): kotlin.Unit
+    private final fun foo(/*0*/ s: kotlin.String): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}