Allow subclasses in *fromJSValue functions

Author: phoboslab

Source/Ejecta/EJCanvas/2D/EJBindingCanvasGradient.m

@@ -19,7 +19,7 @@ + (EJCanvasGradient *)gradientFromJSValue:(JSValueRef)value {
 	if( !value ) { return NULL; }
 
 	EJBindingCanvasGradient *binding = (EJBindingCanvasGradient *)JSValueGetPrivate(value);
-	return (binding && [binding isMemberOfClass:[EJBindingCanvasGradient class]]) ? binding->gradient : NULL;
+	return (binding && [binding isKindOfClass:[EJBindingCanvasGradient class]]) ? binding->gradient : NULL;
 }
 
 - (void)dealloc {

Source/Ejecta/EJCanvas/2D/EJBindingCanvasPattern.m

@@ -18,7 +18,7 @@ + (EJCanvasPattern *)patternFromJSValue:(JSValueRef)value {
 	if( !value ) { return NULL; }
 
 	EJBindingCanvasPattern *binding = (EJBindingCanvasPattern *)JSValueGetPrivate(value);
-	return (binding && [binding isMemberOfClass:[EJBindingCanvasPattern class]]) ? binding->pattern : NULL;
+	return (binding && [binding isKindOfClass:[EJBindingCanvasPattern class]]) ? binding->pattern : NULL;
 }
 
 - (void)dealloc {

Source/Ejecta/EJUtils/IAP/EJBindingIAPProduct.m

@@ -55,7 +55,7 @@ + (EJBindingIAPProduct *)bindingFromJSValue:(JSValueRef)value {
 	if( !value ) { return 0; }
 
 	EJBindingIAPProduct *binding = (EJBindingIAPProduct *)JSValueGetPrivate(value);
-	return (binding && [binding isMemberOfClass:[self class]]) ? binding : NULL;
+	return (binding && [binding isKindOfClass:[self class]]) ? binding : NULL;
 }
 
 EJ_BIND_GET(id, ctx) {