[ddc] Clearing RTI environment eval caches on hot reload.

Fixes #60267

Change-Id: I0abd119311c69ce69a2ebdc99b94f3051f5d3984
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/414188
Reviewed-by: Stephen Adams <[email protected]>
Commit-Queue: Mark Zhou <[email protected]>
Reviewed-by: Mayank Patke <[email protected]>

Author: Markzipan

sdk/lib/_internal/js_shared/lib/rti.dart

@@ -576,15 +576,20 @@ Rti _rtiBind(Rti environment, Rti types) {
 /// app (such as after a hot reload).
 void resetRtiSubtypeCaches() {
   var universe = _theUniverse();
-  var cache = _Universe.evalCache(universe);
-  var values = _Utils.mapValues(cache);
-  var length = _Utils.arrayLength(values);
+  var evalCache = _Universe.evalCache(universe);
+  var cacheValues = _Utils.mapValues(evalCache);
+  var length = _Utils.arrayLength(cacheValues);
   for (int i = 0; i < length; i++) {
-    Rti rti = _Utils.asRti(_Utils.arrayAt(values, i));
+    Rti rti = _Utils.asRti(_Utils.arrayAt(cacheValues, i));
     var sCache = Rti._getRawIsSubtypeCache(rti);
     if (sCache != null) {
       _Utils.mapClear(sCache);
     }
+    // Clear eval caches on RTIs that are type environments.
+    var rtiCache = Rti._getEvalCache(rti);
+    if (rtiCache != null) {
+      _Utils.mapClear(rtiCache);
+    }
   }
 }