Reset the path tracer completely, and check whether an object has source code before trying to print

src/objects-printer.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 735 matching lines @@
 
 void SharedFunctionInfo::SharedFunctionInfoPrint(FILE* out) {
   HeapObject::PrintHeader(out, "SharedFunctionInfo");
   PrintF(out, " - name: ");
   name()->ShortPrint(out);
   PrintF(out, "\n - expected_nof_properties: %d", expected_nof_properties());
   PrintF(out, "\n - instance class name = ");
   instance_class_name()->Print(out);
   PrintF(out, "\n - code = ");
   code()->ShortPrint(out);
-  PrintF(out, "\n - source code = ");
-  GetSourceCode()->ShortPrint(out);
+  if (HasSourceCode()) {
+    PrintF(out, "\n - source code = ");
+    GetSourceCode()->ShortPrint(out);
+  }
   // Script files are often large, hard to read.
   // PrintF(out, "\n - script =");
   // script()->Print(out);
   PrintF(out, "\n - function token position = %d", function_token_position());
   PrintF(out, "\n - start position = %d", start_position());
   PrintF(out, "\n - end position = %d", end_position());
   PrintF(out, "\n - is expression = %d", is_expression());
   PrintF(out, "\n - debug info = ");
   debug_info()->ShortPrint(out);
   PrintF(out, "\n - length = %d", length());
@@ skipping 243 matching lines @@
     desc.Print(out);
   }
   PrintF(out, "\n");
 }
 
 
 #endif  // OBJECT_PRINT
 
 
 } }  // namespace v8::internal