message: fix(ivy): animations should not be a hard error yet
  Previously the Ivy template compiler would throw on encountering
  an animation binding (e.g. [@anim]). This is unneccessary and
  precludes testing existing code. This commit changes the error to a
  warning.
  PR Close
diff: @@ -489,7 +489,8 @@ export class TemplateDefinitionBuilder implements t.Visitor<void>, LocalResolver
  // Generate element input bindings
  allOtherInputs.forEach((input: t.BoundAttribute) => {
  if (input.type === BindingType.Animation) {
  - this._unsupported('animations');
  + console.error('warning: animation bindings not yet supported');
  + return;
  }
  const convertedBinding = this.convertPropertyBinding(implicit, input.value);
  