[FIR] Add ability to safe proper ConeKotlinType in FirErrorTypeRef

This is needed for cases when some type ref is resolved to proper type
  but has some diagnostic (e.g. this type is invisible)

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/FirCallCompletionResultsWriterTransformer.kt

@@ -107,6 +107,7 @@ class FirCallCompletionResultsWriterTransformer(
             } else {
                 buildErrorTypeRef {
                     source = calculated.source?.fakeElement(KtFakeSourceElementKind.ImplicitTypeRef)
+                    type = calculated.type
                     diagnostic = calculated.diagnostic
                 }
             }

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/FirSpecificTypeResolverTransformer.kt

@@ -116,6 +116,9 @@ class FirSpecificTypeResolverTransformer(
         } else {
             buildErrorTypeRef {
                 source = functionTypeRef.source
+                if (resolvedType != null) {
+                    type = resolvedType
+                }
                 diagnostic = (resolvedType as? ConeClassErrorType)?.diagnostic
                     ?: ConeSimpleDiagnostic("Unresolved functional type: ${functionTypeRef.render()}")
             }
@@ -146,9 +149,9 @@ class FirSpecificTypeResolverTransformer(
                     typeRef.source
                 }
 
-                delegatedTypeRef = typeRef
-
-                diagnostic = resolvedType.diagnostic
+                    delegatedTypeRef = typeRef
+                    type = resolvedType
+                    diagnostic = resolvedType.diagnostic
             }
         }
     }