[typescript-language-features] Add includeCompletionsWithObjectLiteralMethodSnippets preference (#145941)

* create flag for object literal method snippet completions

* reword description

Author: gabritto

extensions/typescript-language-features/package.json

@@ -1178,6 +1178,12 @@
           "default": true,
           "description": "%configuration.suggest.classMemberSnippets.enabled%",
           "scope": "resource"
+        },
+        "typescript.suggest.objectLiteralMethodSnippets.enabled": {
+          "type": "boolean",
+          "default": true,
+          "description": "%configuration.suggest.objectLiteralMethodSnippets.enabled%",
+          "scope": "resource"
         }
       }
     },

extensions/typescript-language-features/package.nls.json

@@ -190,5 +190,6 @@
 	"codeActions.refactor.rewrite.property.generateAccessors.description": "Generate 'get' and 'set' accessors",
 	"codeActions.source.organizeImports.title": "Organize imports",
 	"typescript.findAllFileReferences": "Find File References",
-	"configuration.suggest.classMemberSnippets.enabled": "Enable/disable snippet completions for class members. Requires using TypeScript 4.5+ in the workspace"
+	"configuration.suggest.classMemberSnippets.enabled": "Enable/disable snippet completions for class members. Requires using TypeScript 4.5+ in the workspace",
+	"configuration.suggest.objectLiteralMethodSnippets.enabled": "Enable/disable snippet completions for methods in object literals. Requires using TypeScript 4.7+ in the workspace"
 }

extensions/typescript-language-features/src/languageFeatures/fileConfigurationManager.ts

@@ -187,6 +187,8 @@ export default class FileConfigurationManager extends Disposable {
 			includeCompletionsForImportStatements: config.get<boolean>('suggest.includeCompletionsForImportStatements', true),
 			includeCompletionsWithSnippetText: config.get<boolean>('suggest.includeCompletionsWithSnippetText', true),
 			includeCompletionsWithClassMemberSnippets: config.get<boolean>('suggest.classMemberSnippets.enabled', true),
+			// @ts-expect-error until 4.7
+			includeCompletionsWithObjectLiteralMethodSnippets: config.get<boolean>('suggest.objectLiteralMethodSnippets.enabled', true),
 			allowIncompleteCompletions: true,
 			displayPartsForJSDoc: true,
 			...getInlayHintsPreferences(config),