improve output size by refactoring blank_object() to {]

src/runtime/internal/Component.ts

@@ -1,6 +1,6 @@
 import { add_render_callback, flush, schedule_update, dirty_components } from './scheduler';
 import { current_component, set_current_component } from './lifecycle';
-import { blank_object, is_empty, is_function, run, run_all, noop } from './utils';
+import { is_empty, is_function, run, run_all, noop } from './utils';
 import { children, detach } from './dom';
 import { transition_in } from './transitions';
 
@@ -110,7 +110,7 @@ export function init(component, options, instance, create_fragment, not_equal, p
 		props,
 		update: noop,
 		not_equal,
-		bound: blank_object(),
+		bound: {},
 
 		// lifecycle
 		on_mount: [],
@@ -120,7 +120,7 @@ export function init(component, options, instance, create_fragment, not_equal, p
 		context: new Map(parent_component ? parent_component.$$.context : []),
 
 		// everything else
-		callbacks: blank_object(),
+		callbacks: {},
 		dirty,
 		skip_bound: false
 	};

src/runtime/internal/ssr.ts

@@ -1,5 +1,5 @@
 import { set_current_component, current_component } from './lifecycle';
-import { run_all, blank_object } from './utils';
+import { run_all } from './utils';
 import { boolean_attributes } from '../../compiler/compile/render_ssr/handlers/shared/boolean_attributes';
 
 export const invalid_attribute_name_character = /[\s'">/=\u{FDD0}-\u{FDEF}\u{FFFE}\u{FFFF}\u{1FFFE}\u{1FFFF}\u{2FFFE}\u{2FFFF}\u{3FFFE}\u{3FFFF}\u{4FFFE}\u{4FFFF}\u{5FFFE}\u{5FFFF}\u{6FFFE}\u{6FFFF}\u{7FFFE}\u{7FFFF}\u{8FFFE}\u{8FFFF}\u{9FFFE}\u{9FFFF}\u{AFFFE}\u{AFFFF}\u{BFFFE}\u{BFFFF}\u{CFFFE}\u{CFFFF}\u{DFFFE}\u{DFFFF}\u{EFFFE}\u{EFFFF}\u{FFFFE}\u{FFFFF}\u{10FFFE}\u{10FFFF}]/u;
@@ -85,7 +85,7 @@ export function create_ssr_component(fn) {
 			on_mount: [],
 			before_update: [],
 			after_update: [],
-			callbacks: blank_object()
+			callbacks: {}
 		};
 
 		set_current_component({ $$ });

src/runtime/internal/utils.ts

@@ -24,10 +24,6 @@ export function run(fn) {
 	return fn();
 }
 
-export function blank_object() {
-	return Object.create(null);
-}
-
 export function run_all(fns) {
 	fns.forEach(run);
 }