src/vs/workbench/common/editor.ts/EditorInputFactoryRegistry/start
class EditorInputFactoryRegistry:	start(accessor: ServicesAccessor): void {
		const instantiationService = this.instantiationService = accessor.get(IInstantiationService);

		for (const [key, ctor] of this.editorInputSerializerConstructors) {
			this.createEditorInputSerializer(key, ctor, instantiationService);
		}

		this.editorInputSerializerConstructors.clear();
	}