Locate source of Simulation Target diagnostics

When I run my Simulink model for the first time, I see diagnostics printed like VarDim N, SF Y, concat N, TLC YVarDim N, SF Y, concat N, TLC YVarDim N, SF Y, concat N, TLC Y. I am running in accelerator mode. I have found similar text printed in this example, but the example does not give context behind the diagnostics. The common file I have found containing the text VarDim is the codedescriptor.dmr file. What is the source of the diagnostic? How can I disable it?