adjust error message

src/compiler/compile/nodes/Element.ts

@@ -408,7 +408,7 @@ export default class Element extends Node {
 				if (!(parent.type === 'InlineComponent' || (parent.type === 'Element' && /-/.test(parent.name)))) {
 					component.error(attribute, {
 						code: `invalid-slotted-content`,
-						message: `Element with a slot='...' attribute must be a direct descendant of a component or custom element`,
+						message: `Element with a slot='...' attribute must be a child of a component or custom element`,
 					});
 				}
 			}

test/runtime/samples/component-slot-nested-error-2/_config.js

@@ -1,3 +1,3 @@
 export default {
-	error: [`Element with a slot='...' attribute must be a direct descendant of a component or custom element`]
+	error: [`Element with a slot='...' attribute must be a child of a component or custom element`]
 };

test/runtime/samples/component-slot-nested-error-3/_config.js

@@ -1,3 +1,3 @@
 export default {
-	error: [`Element with a slot='...' attribute must be a direct descendant of a component or custom element`]
+	error: [`Element with a slot='...' attribute must be a child of a component or custom element`]
 };

test/runtime/samples/component-slot-nested-error/_config.js

@@ -1,3 +1,3 @@
 export default {
-	error: [`Element with a slot='...' attribute must be a direct descendant of a component or custom element`]
+	error: [`Element with a slot='...' attribute must be a child of a component or custom element`]
 };

test/validator/samples/slot-attribute-invalid/errors.json

@@ -1,6 +1,6 @@
 [{
 	"code": "invalid-slotted-content",
-	"message": "Element with a slot='...' attribute must be a direct descendant of a component or custom element",
+	"message": "Element with a slot='...' attribute must be a child of a component or custom element",
 	"start": {
 		"line": 1,
 		"column": 5,