fix: restore preserveConstEnums and import them from vscode

src/service-override/configuration.ts

@@ -5,7 +5,8 @@ import { IConfigurationService } from 'vs/platform/configuration/common/configur
 import { ITextResourceConfigurationService } from 'vs/editor/common/services/textResourceConfiguration'
 import { TextResourceConfigurationService } from 'vs/editor/common/services/textResourceConfigurationService'
 import { SyncDescriptor } from 'vs/platform/instantiation/common/descriptors'
-import { IConfigurationRegistry, Extensions as ConfigurationExtensions, ConfigurationScope, IConfigurationNode, IConfigurationDefaults } from 'vs/platform/configuration/common/configurationRegistry'
+import { ConfigurationScope } from 'vscode/vs/platform/configuration/common/configurationRegistry'
+import { IConfigurationRegistry, Extensions as ConfigurationExtensions, IConfigurationNode, IConfigurationDefaults } from 'vs/platform/configuration/common/configurationRegistry'
 import { Registry } from 'vs/platform/registry/common/platform'
 import { VSBuffer } from 'vs/base/common/buffer'
 import { IFileService } from 'vs/platform/files/common/files'

src/service-override/files.ts

@@ -5,7 +5,8 @@ import { FileService } from 'vs/platform/files/common/fileService'
 import { ILogService } from 'vs/platform/log/common/log'
 import { InMemoryFileSystemProvider } from 'vs/platform/files/common/inMemoryFilesystemProvider'
 import { URI } from 'vs/base/common/uri'
-import { createFileSystemProviderError, FileChangeType, FileSystemProviderCapabilities, FileSystemProviderError, FileSystemProviderErrorCode, FileType, IFileChange, IFileDeleteOptions, IFileOverwriteOptions, IFileService, IFileSystemProviderWithFileReadWriteCapability, IFileWriteOptions, IStat, IWatchOptions } from 'vs/platform/files/common/files'
+import { FileChangeType, FileSystemProviderCapabilities, FileType } from 'vscode/vs/platform/files/common/files'
+import { createFileSystemProviderError, FileSystemProviderError, FileSystemProviderErrorCode, IFileChange, IFileDeleteOptions, IFileOverwriteOptions, IFileService, IFileSystemProviderWithFileReadWriteCapability, IFileWriteOptions, IStat, IWatchOptions } from 'vs/platform/files/common/files'
 import { DisposableStore, IDisposable, Disposable } from 'vs/base/common/lifecycle'
 import { ITextFileService } from 'vs/workbench/services/textfile/common/textfiles'
 import { BrowserTextFileService } from 'vs/workbench/services/textfile/browser/browserTextFileService'

src/services.ts

@@ -3,7 +3,7 @@ import Severity from 'vs/base/common/severity'
 import { IConfigurationChangeEvent } from 'vs/platform/configuration/common/configuration'
 import { ITextModelContentProvider } from 'vs/editor/common/services/resolverService'
 import { IColorTheme } from 'vs/platform/theme/common/themeService'
-import { StorageScope, StorageTarget } from 'vs/platform/storage/common/storage'
+import { StorageScope, StorageTarget } from 'vscode/vs/platform/storage/common/storage'
 import { Registry } from 'vs/platform/registry/common/platform'
 import { IWorkbenchContributionsRegistry, Extensions as WorkbenchExtensions } from 'vs/workbench/common/contributions'
 import { IEditorOverrideServices, StandaloneServices } from 'vs/editor/standalone/browser/standaloneServices'
@@ -13,9 +13,6 @@ import { RunOnceScheduler, runWhenIdle } from 'vs/base/common/async'
 import { Emitter } from 'vs/base/common/event'
 import { IAction } from 'vs/base/common/actions'
 import getLayoutServiceOverride from './service-override/layout'
-// Hack so ContextKeyExprType is included in the bundle as it's used but rollup-plugin-dts is unable to detect it
-// https://github.com/Swatinem/rollup-plugin-dts/issues/220
-export { ContextKeyExprType } from 'vs/platform/contextkey/common/contextkey'
 
 interface ServiceInitializeParticipant {
   (accessor: ServicesAccessor): Promise<void>

tsconfig.json

@@ -22,7 +22,8 @@
 			"monaco-editor/esm/*": [
 				"./vscode/*"
 			]
-		}
+		},
+		"preserveConstEnums": true
 	},
 	"include": [
 		"./src/**/*",