fix docs analysis error on setImageSampler (#37852)
diff --git a/lib/ui/painting.dart b/lib/ui/painting.dart
index 80889db..891a189 100644
--- a/lib/ui/painting.dart
+++ b/lib/ui/painting.dart
@@ -4288,7 +4288,7 @@
/// is:
///
/// ```dart
- /// void updateShader(ui.FragmentShader shader, Color color, Image image) {
+ /// void updateShader(ui.FragmentShader shader, Color color, ui.Image image) {
/// shader.setFloat(0, 23); // uScale
/// shader.setFloat(1, 114); // uMagnitude x
/// shader.setFloat(2, 83); // uMagnitude y