Add a TODO for more aggressive constructor inlining

Bug: b/278679664
Change-Id: I32a8e6b649bda82da0c3eb7b21b996fee1d61dcd
diff --git a/src/main/java/com/android/tools/r8/ir/optimize/DefaultInliningOracle.java b/src/main/java/com/android/tools/r8/ir/optimize/DefaultInliningOracle.java
index a2572eb..03245b3 100644
--- a/src/main/java/com/android/tools/r8/ir/optimize/DefaultInliningOracle.java
+++ b/src/main/java/com/android/tools/r8/ir/optimize/DefaultInliningOracle.java
@@ -523,6 +523,7 @@
     //       ...
     //     }
     //   }
+    // TODO(b/278679664): Relax requirement (3) when targeting DEX.
     Value thisValue = inlinee.entryBlock().entry().asArgument().outValue();
 
     List<InvokeDirect> initCallsOnThis = new ArrayList<>();