src/vs/platform/extensionManagement/common/extensionEnablementService.ts/GlobalExtensionEnablementService/_addToDisabledExtensions
class GlobalExtensionEnablementService:	private _addToDisabledExtensions(identifier: IExtensionIdentifier): boolean {
		const disabledExtensions = this.getDisabledExtensions();
		if (disabledExtensions.every(e => !areSameExtensions(e, identifier))) {
			disabledExtensions.push(identifier);
			this._setDisabledExtensions(disabledExtensions);
			return true;
		}
		return false;
	}