[Compiler] Ensure we enter the correct context for compiler-dispatcher jobs.

src/compiler-dispatcher/compiler-dispatcher.cc

Index: src/compiler-dispatcher/compiler-dispatcher.cc
diff --git a/src/compiler-dispatcher/compiler-dispatcher.cc b/src/compiler-dispatcher/compiler-dispatcher.cc
index b1c5b9d9d012b9bbeb2529f1c1de823d554d0fa6..b028d51d4bee08578fa2a8da64f1b2972b8fe0eb 100644
--- a/src/compiler-dispatcher/compiler-dispatcher.cc
+++ b/src/compiler-dispatcher/compiler-dispatcher.cc
@@ -24,6 +24,11 @@ enum class ExceptionHandling { kSwallow, kThrow };
 bool DoNextStepOnMainThread(Isolate* isolate, CompilerDispatcherJob* job,
                             ExceptionHandling exception_handling) {
   DCHECK(ThreadId::Current().Equals(isolate->thread_id()));
+
+  // Ensure we are in the correct context for the job.
+  SaveContext save(isolate);
+  isolate->set_context(job->context());
+
   switch (job->status()) {
     case CompileJobStatus::kInitial:
       job->PrepareToParseOnMainThread();