Fix fallout from 'Remove the turboprop implementation'

.. caused by accidentally removing the continuation case of a
V8_FALLTHROUGH.

Fixed: v8:12561
Bug: v8:12552
Change-Id: I720a531155751b5409339344e96957a2e325a82f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3406538
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78735}

src/codegen/optimized-compilation-info.cc

@@ -68,11 +68,16 @@ void OptimizedCompilationInfo::ConfigureFlags() {
 
   switch (code_kind_) {
     case CodeKind::TURBOFAN:
+      set_called_with_code_start_register();
+      set_switch_jump_table();
+      if (FLAG_analyze_environment_liveness) {
+        set_analyze_environment_liveness();
+      }
       if (FLAG_function_context_specialization) {
         set_function_context_specializing();
       }
       if (FLAG_turbo_splitting) set_splitting();
-      V8_FALLTHROUGH;
+      break;
     case CodeKind::BYTECODE_HANDLER:
       set_called_with_code_start_register();
       if (FLAG_turbo_splitting) set_splitting();