Copy allowTextChangesInNewFiles property to protocol.ts (#24127)

Author: Andy

src/server/protocol.ts

@@ -2682,6 +2682,7 @@ namespace ts.server.protocol {
          */
         readonly includeCompletionsWithInsertText?: boolean;
         readonly importModuleSpecifierPreference?: "relative" | "non-relative";
+        readonly allowTextChangesInNewFiles?: boolean;
     }
 
     export interface CompilerOptions {

tests/baselines/reference/api/tsserverlibrary.d.ts

@@ -7579,6 +7579,7 @@ declare namespace ts.server.protocol {
          */
         readonly includeCompletionsWithInsertText?: boolean;
         readonly importModuleSpecifierPreference?: "relative" | "non-relative";
+        readonly allowTextChangesInNewFiles?: boolean;
     }
     interface CompilerOptions {
         allowJs?: boolean;