Don't try to revive buffers

We can safely skip reviving these objects (which is quite expensive) since they only contain numbers

src/vs/base/common/marshalling.ts

@@ -5,6 +5,7 @@
 
 import { URI } from 'vs/base/common/uri';
 import { regExpFlags } from 'vs/base/common/strings';
+import { VSBuffer } from 'vs/base/common/buffer';
 
 export function stringify(obj: any): string {
 	return JSON.stringify(obj, replacer);
@@ -44,6 +45,13 @@ export function revive(obj: any, depth = 0): any {
 			case 2: return new RegExp(obj.source, obj.flags);
 		}
 
+		if (
+			obj instanceof VSBuffer
+			|| obj instanceof Uint8Array
+		) {
+			return obj;
+		}
+
 		// walk object (or array)
 		for (let key in obj) {
 			if (Object.hasOwnProperty.call(obj, key)) {