[FIR] Skip redundant INAPPLICABLE_CANDIDATE on call with unresolved callable reference argument

A new resolution diagnostic UnsuccessfulCallableReferenceAtom is
introduced that is used in EagerResolveOfCallableReferences.
No diagnostic is reported on unresolved calls with this diagnostic
because

#KT-59856

compiler/testData/diagnostics/tests/callableReference/genericCallWithReferenceAgainstVararg.fir.kt

@@ -4,7 +4,7 @@ fun foo(vararg ints: Int) {}
 fun test(i: IntArray) {
     myLet(i, ::foo)
     myLet(::foo)
-    <!INAPPLICABLE_CANDIDATE!>myLet<!><Int>(::<!UNRESOLVED_REFERENCE!>foo<!>)
+    myLet<Int>(::<!UNRESOLVED_REFERENCE!>foo<!>)
     myLet<IntArray>(::foo)
     myLetExplicit1(::foo)
     myLetExplicit2(::foo)