When resetting compile jobs, delete the zone last

The destructors of the parse info, compile info, and compilation job
might still access the zone

BUG=none
R=machenbach@chromium.org

Review-Url: https://codereview.chromium.org/2616883003
Cr-Commit-Position: refs/heads/master@{#42089}

src/compiler-dispatcher/compiler-dispatcher-job.cc

@@ -250,10 +250,10 @@ void CompilerDispatcherJob::ResetOnMainThread() {
   unicode_cache_.reset();
   character_stream_.reset();
   parse_info_.reset();
-  zone_.reset();
   handles_from_parsing_.reset();
   compile_info_.reset();
   compile_job_.reset();
+  zone_.reset();
 
   if (!source_.is_null()) {
     i::GlobalHandles::Destroy(Handle<Object>::cast(source_).location());