Add call stack to unused/uninitialized variable warnings
In commit v2.8.4~32^2~14 (Use cmake::IssueMessage for warnings, 2010-12-07) these warnings became formatted. It is more informative to give the full call stack with such warnings. Also it is easier to implement warnings with a full call stack because we do not have to construct a custom backtrace with only the top.
Showing with 4 additions and 25 deletions