Merge pull request #107408 from Ivorforce/node-path-string-explicit

Make conversions from `NodePath` to `String` explicit.

core/string/node_path.h

@@ -78,7 +78,7 @@ public:
 		return data->hash_cache;
 	}
 
-	operator String() const;
+	explicit operator String() const;
 	bool is_empty() const;
 
 	bool operator==(const NodePath &p_path) const;

core/variant/variant.cpp

@@ -1642,7 +1642,7 @@ String Variant::stringify(int recursion_count) const {
 		case STRING_NAME:
 			return operator StringName();
 		case NODE_PATH:
-			return operator NodePath();
+			return String(operator NodePath());
 		case COLOR:
 			return String(operator Color());
 		case DICTIONARY: {