Re-revert "Flush parallel recompilation queues on context dispose notification" (r15883).

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index d2ffb9c3c81a5871cbe8ffd159c1e223c4c8a142..7839faaddf61e4234b16d6109bc9c6e1c26fde18 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -9234,7 +9234,6 @@ void JSFunction::MarkForLazyRecompilation() {
   ASSERT(!IsOptimized());
   ASSERT(shared()->allows_lazy_compilation() ||
          code()->optimizable());
-  ASSERT(!shared()->is_generator());
   set_code_no_write_barrier(
       GetIsolate()->builtins()->builtin(Builtins::kLazyRecompile));
   // No write barrier required, since the builtin is part of the root set.
@@ -9245,8 +9244,10 @@ void JSFunction::MarkForParallelRecompilation() {
   ASSERT(is_compiled() || GetIsolate()->DebuggerHasBreakPoints());
   ASSERT(!IsOptimized());
   ASSERT(shared()->allows_lazy_compilation() || code()->optimizable());
-  ASSERT(!shared()->is_generator());
-  ASSERT(FLAG_parallel_recompilation);
+  if (!FLAG_parallel_recompilation) {
+    JSFunction::MarkForLazyRecompilation();
+    return;
+  }
   if (FLAG_trace_parallel_recompilation) {
     PrintF("  ** Marking ");
     PrintName();