message: Simplify CFG before experiment flush
  Summary: The inliner may generate unreachable blocks. An example is inlining of unconditionally `throw`ing code. Simplify the work of experiment contexts and call `simplify` to remove unreachable blocks.
diff: @@ -782,6 +782,7 @@ void MultiMethodInliner::inline_inlinables(
  }
  if (exp != nullptr) {
  + caller->cfg().simplify(); // Remove unreachable code.
  exp->flush();
  if (caller_had_editable_cfg) {
  caller->build_cfg();
  