FIR: Extract function in TowerLevelHandler

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/TowerLevelHandler.kt

@@ -201,36 +201,45 @@ internal class LevelHandler(
 
             val explicitReceiver = ExpressionReceiverValue(invokeReceiverExpression)
             callResolutionContext.invokeOnGivenReceiverCandidateFactory = CandidateFactory(components, invokeFunctionInfo)
-            when {
+            enqueueResolverTasksForInvoke(
-                invokeBuiltinExtensionMode -> {
+                invokeFunctionInfo,
+                explicitReceiver,
+                invokeBuiltinExtensionMode,
+                useImplicitReceiverAsBuiltinInvokeArgument
+            )
+        }
+    }
+
+    private fun enqueueResolverTasksForInvoke(
+        invokeFunctionInfo: CallInfo,
+        explicitReceiver: ExpressionReceiverValue,
+        invokeBuiltinExtensionMode: Boolean,
+        useImplicitReceiverAsBuiltinInvokeArgument: Boolean
+    ) {
+        if (invokeBuiltinExtensionMode) {
             enqueueResolverTask {
                 towerResolverSession.runResolverForBuiltinInvokeExtensionWithExplicitArgument(
                     invokeFunctionInfo, explicitReceiver
                 )
             }
+
+            return
         }
-                useImplicitReceiverAsBuiltinInvokeArgument -> {
+
+        if (useImplicitReceiverAsBuiltinInvokeArgument) {
             enqueueResolverTask {
                 towerResolverSession.runResolverForBuiltinInvokeExtensionWithImplicitArgument(
                     invokeFunctionInfo, explicitReceiver
                 )
             }
+        }
+
         enqueueResolverTask {
             towerResolverSession.runResolverForInvoke(
                 invokeFunctionInfo, explicitReceiver
             )
         }
     }
-                else -> {
-                    enqueueResolverTask {
-                        towerResolverSession.runResolverForInvoke(
-                            invokeFunctionInfo, explicitReceiver
-                        )
-                    }
-                }
-            }
-        }
-    }
 }
 
 private class TowerScopeLevelProcessor(