fix(compiler): ensure that event handlers have the correct source spans (#28055)

When template bindings are being parsed the event handlers
were receiving a source span that included the whole attribute.

Now they get a span that is focussed on the handler itself.

PR Close #28055

packages/compiler/src/render3/view/template.ts

@@ -79,7 +79,8 @@ export function prepareEventListenerParameters(
   }
 
   const bindingExpr = convertActionBinding(
-      scope, bindingContext, handler, 'b', () => error('Unexpected interpolation'));
+      scope, bindingContext, handler, 'b', () => error('Unexpected interpolation'),
+      eventAst.handlerSpan);
 
   const statements = [];
   if (scope) {