[FIR] Implement RESOLUTION_TO_CLASSIFIER

compiler/fir/analysis-tests/testData/resolve/innerClasses/inner.fir.txt

@@ -41,7 +41,7 @@ FILE: inner.kt
     public final fun test(): R|kotlin/Unit| {
         lval o: R|Owner| = R|/Owner.Owner|()
         R|<local>/o|.R|/Owner.foo|()
-        lval err: <ERROR TYPE REF: Unresolved name: Inner> = Q|Owner|.<Unresolved name: Inner>#()
+        lval err: <ERROR TYPE REF: Resolution to classifier> = Q|Owner|.<Resolution to classifier>#()
         R|<local>/err|.<Unresolved name: baz>#()
         lval i: R|Owner.Inner| = R|<local>/o|.R|/Owner.Inner.Inner|()
         R|<local>/i|.R|/Owner.Inner.gau|()

compiler/fir/analysis-tests/testData/resolve/innerClasses/inner.kt

@@ -31,7 +31,7 @@ class Owner {
 fun test() {
     val o = Owner()
     o.foo()
-    val err = Owner.<!UNRESOLVED_REFERENCE!>Inner<!>()
+    val err = Owner.<!RESOLUTION_TO_CLASSIFIER!>Inner<!>()
     err.<!UNRESOLVED_REFERENCE!>baz<!>()
     val i = o.Inner()
     i.gau()