Animation: workaround so we're able to test with MSVC debug iterators on.

src/Magnum/Animation/Player.hpp

@@ -88,7 +88,8 @@ template<class T, class K> std::size_t Player<T, K>::size() const {
 
 template<class T, class K> const TrackViewStorage<K>& Player<T, K>::track(std::size_t i) const {
     CORRADE_ASSERT(i < _tracks.size(),
-        "Animation::Player::track(): index out of range", _tracks[i].track);
+        /* Returning track 0 so we can test this w/ MSVC debug iterators */
+        "Animation::Player::track(): index out of range", _tracks[0].track);
     return _tracks[i].track;
 }
 

src/Magnum/Animation/Test/PlayerTest.cpp

@@ -278,8 +278,13 @@ void PlayerTest::trackInvalidIndex() {
     std::ostringstream out;
     Error redirectError{&out};
 
+    Float value;
     Player<Float> player;
-    player.track(0);
+    /* Adding at least one track so the return in the graceful assert can
+       return the first value and not trigger MSVC debug iterator abort */
+    player.add(TrackView<Float, Float>{}, value);
+
+    player.track(1);
 
     CORRADE_COMPARE(out.str(), "Animation::Player::track(): index out of range\n");
 }