LibWeb: Make DOMException GC-allocated

Author: https://github.com/awesomekling
Commit: 497ead37bc
Pull-request: https://github.com/SerenityOS/serenity/pull/14816
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/linusg ✅

Userland/Libraries/LibWeb/HTML/CanvasGradient.cpp

@@ -53,14 +53,14 @@ DOM::ExceptionOr<void> CanvasGradient::add_color_stop(double offset, String cons
 {
     // 1. If the offset is less than 0 or greater than 1, then throw an "IndexSizeError" DOMException.
     if (offset < 0 || offset > 1)
-        return DOM::IndexSizeError::create("CanvasGradient color stop offset out of bounds");
+        return DOM::IndexSizeError::create(global_object(), "CanvasGradient color stop offset out of bounds");
 
     // 2. Let parsed color be the result of parsing color.
     auto parsed_color = Color::from_string(color);
 
     // 3. If parsed color is failure, throw a "SyntaxError" DOMException.
     if (!parsed_color.has_value())
-        return DOM::SyntaxError::create("Could not parse color for CanvasGradient");
+        return DOM::SyntaxError::create(global_object(), "Could not parse color for CanvasGradient");
 
     // 4. Place a new stop on the gradient, at offset offset relative to the whole gradient, and with the color parsed color.
     m_color_stops.append(ColorStop { offset, parsed_color.value() });