breakpad dumping: include pdb name if missing exe name, include pdb guid if no exe hash

src/ctrl/ctrl_core.c

@@ -7822,3 +7822,24 @@ ctrl_call_stack_from_thread_new(Access *access, CTRL_Handle thread_handle, B32 h
   }
   return result;
 }
+
+////////////////////////////////
+//~ rjf: Call Stack Tree Artifact Cache Hooks / Lookups
+
+internal AC_Artifact
+ctrl_call_stack_tree_artifact_create(String8 key, U64 gen, U64 *requested_gen, B32 *retry_out)
+{
+  
+}
+
+internal void
+ctrl_call_stack_tree_artifact_destroy(AC_Artifact artifact)
+{
+  
+}
+
+internal CTRL_CallStackTree
+ctrl_call_stack_tree_new(Access *access, U64 endt_us)
+{
+  
+}