Rename instance()->instantiate() when it's a verb

editor/plugins/script_text_editor.cpp

@@ -1861,11 +1861,11 @@ ScriptTextEditor::ScriptTextEditor() {
 	highlighter_menu->set_name("highlighter_menu");
 
 	Ref<EditorPlainTextSyntaxHighlighter> plain_highlighter;
-	plain_highlighter.instance();
+	plain_highlighter.instantiate();
 	add_syntax_highlighter(plain_highlighter);
 
 	Ref<EditorStandardSyntaxHighlighter> highlighter;
-	highlighter.instance();
+	highlighter.instantiate();
 	add_syntax_highlighter(highlighter);
 	set_syntax_highlighter(highlighter);