<p>...that the Coverage tab - in contrast to the Call Lists tab -
shows <em>all</em> functions that are calling the selected function
(upper part) / are called by the selected function (bottom part),
no matter how many function are between them on the stack?</p>
<p>Examples:</p>
<p>An entry in the upper list for function foo1() with a value of 50%
with function bar() selected means that 50% of all the cost of function
bar() happened while called from function foo1().</p>
<p>An entry in the bottom list for function foo2() with a value of 50%
with function bar() selected means that 50% of all the cost of function
bar() happened while calling foo2() from bar().</p>
