FIR: report errors on FirResolvedTypeRef with ConeClassErrorType

Not sure what the difference from FirErrorTypeRef is.

compiler/testData/diagnostics/tests/inference/reportingImprovements/cannotInferParameterTypeWithInference.fir.kt

@@ -13,5 +13,5 @@ fun test1() {
 fun bar(f: (<!UNRESOLVED_REFERENCE!>A<!>)->Unit) {}
 
 fun test2() {
-    bar { a -> } // here we don't have 'cannot infer parameter type' error
+    bar { <!UNRESOLVED_REFERENCE!>a<!> -> } // here we don't have 'cannot infer parameter type' error
 }