IDLGenerators: Allow initialize() as an IDL member name

While not a C++ keyword, we already define a `Foo::initialize()` method
on every generated binding type, so we need to avoid clashing with that.

Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp

@@ -324,7 +324,20 @@ CppType idl_type_name_to_cpp_type(Type const& type, Interface const& interface)
 
 static ByteString make_input_acceptable_cpp(ByteString const& input)
 {
-    if (input.is_one_of("class", "template", "for", "default", "char", "namespace", "delete", "inline", "register", "switch", "mutable", "continue")) {
+    if (input.is_one_of(
+            "char",
+            "class",
+            "continue",
+            "default",
+            "delete",
+            "for",
+            "initialize",
+            "inline",
+            "mutable",
+            "namespace",
+            "register",
+            "switch",
+            "template")) {
         StringBuilder builder;
         builder.append(input);
         builder.append('_');