refactor(multiple): Fix MatTableDataSource and Tooltip types

Author: jamOne-

src/material/table/table-data-source.ts

@@ -41,7 +41,8 @@ const MAX_SAFE_INTEGER = 9007199254740991;
  * own `DataSource`.
  */
 export class MatTableDataSource<
-  T extends object | ArrayLike<unknown>,
+  // TODO: Remove `any` type below in a breaking change:
+  T extends object | ArrayLike<unknown> | any,
   P extends MatPaginator = MatPaginator,
 > extends DataSource<T> {
   /** Stream that emits when a new data array is set on the data source. */

src/material/tooltip/tooltip.ts

@@ -319,7 +319,7 @@ export class MatTooltip implements OnDestroy, AfterViewInit {
     return this._message;
   }
 
-  set message(value: unknown) {
+  set message(value: string | number | null | undefined) {
     const oldMessage = this._message;
 
     // If the message is not a string (e.g. number), convert it to a string and trim it.