1. A method, comprising: using, with a processor of a computer, a list of nested breakpoints to compile a list of functions that contain the nested breakpoints; displaying, in a visualization, program code having the functions, the nested breakpoints, an indication of whether each of the nested breakpoints is to be reached, and an indication of how deeply nested each of the nested breakpoints is; in response to receiving input that selects a function from the functions in the program code in the displayed visualization, displaying a call graph for the functions in the program code, wherein the call graph indicates how the functions are related and indicates which of the functions include the nested breakpoints; and providing an option to disable a nested breakpoint of the nested breakpoints for a current execution of the program code; and in response to receiving input that selects the option, disabling the nested breakpoint; and executing the program code with the nested breakpoint disabled.