Amusingly deprecate the generic version of 'ExceptionState::throwDOMException'.

Source/core/html/canvas/CanvasGradient.cpp

Index: Source/core/html/canvas/CanvasGradient.cpp
diff --git a/Source/core/html/canvas/CanvasGradient.cpp b/Source/core/html/canvas/CanvasGradient.cpp
index 394ebf0f2a4f79cfeb8aecd0e28d2e5c7419b2ab..a54df397a0f6b63895d5eba62aceb57167ad4291 100644
--- a/Source/core/html/canvas/CanvasGradient.cpp
+++ b/Source/core/html/canvas/CanvasGradient.cpp
@@ -49,13 +49,13 @@ CanvasGradient::CanvasGradient(const FloatPoint& p0, float r0, const FloatPoint&
 void CanvasGradient::addColorStop(float value, const String& color, ExceptionState& es)
 {
     if (!(value >= 0 && value <= 1.0f)) {
-        es.throwDOMException(IndexSizeError);
+        es.throwUninformativeAndGenericDOMException(IndexSizeError);
         return;
     }
 
     RGBA32 rgba = 0;
     if (!parseColorOrCurrentColor(rgba, color, 0 /*canvas*/)) {
-        es.throwDOMException(SyntaxError);
+        es.throwUninformativeAndGenericDOMException(SyntaxError);
         return;
     }