[FIR] Additional errors to distinguish resolution to classifier cases

When a call is resolved to a classifier, only a single error message was
being used for multiple cases. This lead to confusion as the default
message may not be applicable to a given error case. Added additional
errors and messages to distinguish between these error cases.

#KT-57251 Fixed

compiler/testData/diagnostics/tests/funInterface/resolveFunInterfaceWithoutMainMethod.fir.kt

@@ -6,7 +6,7 @@ typealias FunAlias = IsolatedFunFace
 fun referIsolatedFunFace(iff: IsolatedFunFace) {}
 
 fun callIsolatedFunFace() {
-    referIsolatedFunFace(<!RESOLUTION_TO_CLASSIFIER!>IsolatedFunFace<!> {})
-    referIsolatedFunFace(<!RESOLUTION_TO_CLASSIFIER!>FunAlias<!> {})
+    referIsolatedFunFace(<!INTERFACE_AS_FUNCTION!>IsolatedFunFace<!> {})
+    referIsolatedFunFace(<!INTERFACE_AS_FUNCTION!>FunAlias<!> {})
     referIsolatedFunFace(<!ARGUMENT_TYPE_MISMATCH!>{}<!>)
 }