Remove registration of functions for signal

kt/entry-generation/godot-class-graph-symbol-processor/src/main/kotlin/godot/annotation/processor/classgraph/extensions/FieldExtensions.kt

@@ -117,6 +117,7 @@ fun FieldInfo.mapFieldToRegisteredSignal(settings: Settings, classInfo: ClassInf
                 parameterValues
                     .getValue(signalParametersName) as Array<String>
                 ).toList(),
+        isFunctionReference = classInfo.isScala,
         isOverridee = isOverridee,
         annotations = annotations.mapNotNull { it.mapToGodotAnnotation(this, fqName) as? PropertyAnnotation },
     )

kt/entry-generation/godot-entry-generator/src/main/kotlin/godot/entrygenerator/generator/SignalRegistrationGenerator.kt

@@ -26,7 +26,7 @@ object SignalRegistrationGenerator {
     }
 
     private fun getStringTemplate(registeredSignal: RegisteredSignal): String = buildString {
-        append("signal(%L")
+        append(if (registeredSignal.isFunctionReference) "signalFunction(%L" else "signalProperty(%L")
         repeat(kotlin.math.max(registeredSignal.parameterTypes.size, registeredSignal.parameterNames.size)) {
             append(", %T(%M, %S, %S)")
         }
@@ -68,4 +68,3 @@ object SignalRegistrationGenerator {
             .reference()
     }
 }
-

kt/entry-generation/godot-entry-generator/src/main/kotlin/godot/entrygenerator/model/RegisteredSignal.kt

@@ -5,6 +5,7 @@ data class RegisteredSignal(
     val type: Type,
     val parameterTypes: List<Type>,
     val parameterNames: List<String>,
+    val isFunctionReference: Boolean = false,
     val isOverridee: Boolean = false,
     val annotations: List<PropertyAnnotation> = emptyList(),
 ) {

kt/godot-library/godot-bootstrap-library/src/main/kotlin/godot/registration/Registration.kt

@@ -32,6 +32,7 @@ import godot.core.KtRpcConfig
 import godot.core.KtSignalInfo
 import godot.core.NotificationFunction
 import godot.core.PropertyHint
+import godot.core.Signal
 import godot.internal.reflection.TypeManager
 import godot.core.VariantParser
 import godot.core.toVariantArray
@@ -1185,12 +1186,12 @@ class ClassBuilderDsl<T : KtObject>(
         )
     }
 
-    fun <T> signal(kProperty: KProperty<T>, vararg parameters: KtFunctionArgument) = signal(
+    fun <T> signalProperty(kProperty: KProperty<T>, vararg parameters: KtFunctionArgument) = signal(
         kProperty.name.convertToSnakeCase(),
         *parameters
     )
 
-    fun <T> signal(kFunction: KFunction<T>, vararg parameters: KtFunctionArgument) = signal(
+    fun <T : Signal> signalFunction(kFunction: KFunction<T>, vararg parameters: KtFunctionArgument) = signal(
         kFunction.name.convertToSnakeCase(),
         *parameters
     )