Fix request position of the inlay hints

Fixes microsoft#129134

The document may change between the request and when `ensureConfigurationForDocument` completes

I think this should fix the shifting around

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

@@ -117,11 +117,11 @@ class TypeScriptInlayHintsProvider extends Disposable implements vscode.InlayHin
 			return [];
 		}
 
-		await this.fileConfigurationManager.ensureConfigurationForDocument(model, token);
-
 		const start = model.offsetAt(range.start);
 		const length = model.offsetAt(range.end) - start;
 
+		await this.fileConfigurationManager.ensureConfigurationForDocument(model, token);
+
 		const response = await (this.client as ExperimentalProto.IExtendedTypeScriptServiceClient).execute('provideInlayHints', { file: filepath, start, length }, token);
 		if (response.type !== 'response' || !response.success || !response.body) {
 			return [];