Remove more uses of the deprecated EnumSet template class.

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 0f3ebe0e6726666acba53cb8745366e992aed288..cf00aed4237aa78aad264ff5e33b94adc60ecc74 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -203,7 +203,8 @@ Code::Flags CompilationInfo::flags() const {
 // profiler, so they trigger their own optimization when they're called
 // for the SharedFunctionInfo::kCallsUntilPrimitiveOptimization-th time.
 bool CompilationInfo::ShouldSelfOptimize() {
-  return FLAG_crankshaft && !function()->flags()->Contains(kDontSelfOptimize) &&
+  return FLAG_crankshaft &&
+         !(function()->flags() & AstProperties::kDontSelfOptimize) &&
          !function()->dont_optimize() &&
          function()->scope()->AllowsLazyCompilation() &&
          (!has_shared_info() || !shared_info()->optimization_disabled());
@@ -753,7 +754,8 @@ static bool Renumber(ParseInfo* parse_info) {
     FunctionLiteral* lit = parse_info->function();
     shared_info->set_ast_node_count(lit->ast_node_count());
     MaybeDisableOptimization(shared_info, lit->dont_optimize_reason());
-    shared_info->set_dont_crankshaft(lit->flags()->Contains(kDontCrankshaft));
+    shared_info->set_dont_crankshaft(lit->flags() &
+                                     AstProperties::kDontCrankshaft);
   }
   return true;
 }