Ignore assignments when checking for unused local definitions

[phdmakk]

A warning shall be raised when a local definition is only used in an assignment where a value is assigned to it.

An example is as follows:

function f_Function2() {
   var boolean v_Dummy := true; // Does cause a "checkNoUnusedLocalDefinitions" warning 
}
function f_Function3() {
   var boolean v_Dummy;
   v_Dummy := true; // Does not cause a "checkNoUnusedLocalDefinitions" warning 
}

While technically v_Dummy is "used" in f_Function3, the assigned value is never referenced afterwards. T3Q shall ignore assignments as "uses" for local definitions and raise warnings when the assigned values are never used.