Do not print enforcing Ignition and TurboFan when --turbo is on

BUG=

Review-Url: https://codereview.chromium.org/2757543004
Cr-Commit-Position: refs/heads/master@{#44605}

src/ast/ast-numbering.cc

@@ -714,7 +714,7 @@ bool AstNumberingVisitor::Renumber(FunctionLiteral* node) {
   node->set_dont_optimize_reason(dont_optimize_reason());
   node->set_suspend_count(suspend_count_);
 
-  if (FLAG_trace_opt) {
+  if (FLAG_trace_opt && !FLAG_turbo) {
     if (disable_crankshaft_reason_ != kNoReason) {
       // TODO(leszeks): This is a quick'n'dirty fix to allow the debug name of
       // the function to be accessed in the below print. This DCHECK will fail