jsDoc intellisense support for @typedef in another file

Issue Type: Feature Request

Intellisense uses @typedef tags in other files but only if the file is opened in current window. Please allow any typedef tag to be used inside current working directory even if file containing typedef is not opened.

Here is what i mean. I annotated a variable with type. This variable is exported directly with module.exports.

My typedef is in seperate file.
Configuration.js

/**
 * @typedef {Object} ConfigurationInputDirectories
 * @property {string} modules
 * @property {string} layoutModules
 * @property {string} standaloneScripts
 * @property {string} standaloneStyles
 * @property {string} libraryScripts
 * @property {string} libraryStyles
 * @property {string} markupTemplates
 */

/**
 * @typedef {Object} ConfigurationOutputDirectories
 * @property {string} pageScripts
 * @property {string} vendorScripts
 * @property {string} standaloneScripts
 * @property {string} pageStyles
 * @property {string} vendorStyles
 * @property {string} standaloneStyles
 * @property {string} markupFiles
 */

/**
 * @typedef {Object} ConfigurationVendor
 * @property {string} standardPath
 * @property {string} minPath
 */

/**
 * @typedef {Object} ConfigurationModule
 * @property {string} layoutModule
 * @property {string} markupTemplate
 * @property {string[]} includeStandaloneScripts
 * @property {string[]} includeStandaloneStyles
 * @property {string[]} includeVendorScripts
 * @property {string[]} includeVendorStyles
 * @property {string[]} excludeStandaloneScripts
 * @property {string[]} excludeStandaloneStyles
 * @property {string[]} excludeVendorScripts
 * @property {string[]} excludeVendorStyles
 */


/**
 * @typedef {Object} ConfigurationLayoutModule
 * @property {string} layoutModule
 * @property {string} markupTemplate
 * @property {string[]} includeStandaloneScripts
 * @property {string[]} includeStandaloneStyles
 * @property {string[]} includeVendorScripts
 * @property {string[]} includeVendorStyles
 * @property {string[]} excludeStandaloneScripts
 * @property {string[]} excludeStandaloneStyles
 * @property {string[]} excludeVendorScripts
 * @property {string[]} excludeVendorStyles
 */

/**
 * Represents configuration object for build process.
 * @typedef {Object} Configuration
 * @property {ConfigurationInputDirectories} inputDirectories
 * @property {ConfigurationOutputDirectories} outputDirectories
 * @property {Object.<string,ConfigurationVendor} vendorScripts
 * @property {Object.<string,ConfigurationVendor>} vendorStyles
 * @property {Object.<string,ConfigurationModule>} modules
 * @property {Object.<string,ConfigurationLayoutModule>} layoutModules
 * @property {string} defaultMarkupTemplate
 * @property {string} contentPlaceHolder
 * @property {string} nameDirectorySeperator
 * @property {string[]} validLibraryEntryFileNames
 * @property {string} moduleFileName
 * @property {string} rootModuleFileName
 * @property {string} systemjsPath
 * @property {string} systemjsNamedRegistersPath
 */

When this file containing type definitions is open the intellisense/language service/or whatever you call it is recognizing this variable's type and intellisense displays the members when using this config variable. But when file is closed its type turns to any. It would be nice to see type informations from typedef tags even if files containing tags are closed.

VS Code version: Code 1.33.0 (0dd516dd412d42323fc3464531b1c715d51c4c1a, 2019-04-04T15:14:28.026Z)
OS version: Windows_NT x64 10.0.17134

Tái hiện vấn đề với các typedef trong Configuration.js được cung cấp và một consumer module.exports riêng biệt, trước tiên khi tệp typedef đang mở và sau đó khi đã đóng. Theo dõi quá trình JavaScript language service phát hiện JSDoc @typedef và làm cho consumer phân giải các kiểu đó trên toàn bộ thư mục làm việc hiện tại; hoàn tất khi IntelliSense hiển thị các thành viên typedef trong cả hai trường hợp.