Assert that unoptimized code does not embed context-specific objects.

src/full-codegen.cc

Index: src/full-codegen.cc
diff --git a/src/full-codegen.cc b/src/full-codegen.cc
index bd3846711d3216b7935a1d32d643408dd5caed50..58e5e978abf2dd7b73363378ccef7d1d4e9780f6 100644
--- a/src/full-codegen.cc
+++ b/src/full-codegen.cc
@@ -346,6 +346,11 @@ bool FullCodeGenerator::MakeCode(CompilationInfo* info) {
   info->SetCode(code);
   void* line_info = masm.positions_recorder()->DetachJITHandlerData();
   LOG_CODE_EVENT(isolate, CodeEndLinePosInfoRecordEvent(*code, line_info));
+
+#ifdef DEBUG
+  // Check that no context-specific object has been embedded.
+  code->VerifyEmbeddedObjectsInFullCode();
+#endif  // DEBUG
   return true;
 }