Add safety watchdogs to loops inside GPU to avoid infinite loops and oh-so-much-fun crashes

[davids91]

In the ideal end product, safety watchdogs have no purpose, since every loop has a well defined length. For each loop and while block:

• Define the upper bound of the number of times the loop might go.
• Create a local variable starting from 0, counting up with every execution of the loop
• Break out of the loop when it reaches the maximum limit
• Display error color in this case if possible
• Comment out the statements, put a DEBUG marker next to them.