Revert^4 "Allow structural redefinition on non-final classes."

This reverts commit 664999a12d6fc8a8ef5c0519b12ec1e8a51bb085.

Fixed issues with GC and quickened instructions in parent CLs.

Reason for revert: Fixed issues with GC CHECK fail and device SEGVs.

Test: ./test.py --host
Test: ./test.py --target
Bug: 134162467
Bug: 144168550
Change-Id: Ibacddaf45beb72184f97d53d5d048bd442578658
diff --git a/test/knownfailures.json b/test/knownfailures.json
index 8840de5..c5115e9 100644
--- a/test/knownfailures.json
+++ b/test/knownfailures.json
@@ -1150,7 +1150,11 @@
                   "1995-final-virtual-structural-multithread",
                   "1996-final-override-virtual-structural",
                   "1997-structural-shadow-method",
-                  "1998-structural-shadow-field"
+                  "1998-structural-shadow-field",
+                  "1999-virtual-structural",
+                  "2000-virtual-list-structural",
+                  "2001-virtual-structural-multithread",
+                  "2002-virtual-structural-initializing"
                 ],
         "variant": "jvm",
         "description": ["Doesn't run on RI."]