src/vs/workbench/services/extensions/common/extensionHostManager.ts/ExtensionHostManager/activate
class ExtensionHostManager:	public async activate(extension: ExtensionIdentifier, reason: ExtensionActivationReason): Promise<boolean> {
		const proxy = await this._proxy;
		if (!proxy) {
			return false;
		}
		return proxy.activate(extension, reason);
	}