invoke: preserve line numbers during helper methods #111
+73
−25
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When invoking a helper function (or "auxiliary method", in the documentation), we lose the file/function/line information of the current call point. This means that we attribute failures to the helper function instead of the actual test.
Provide a
cl_invoke
function that will preserve the current state. This allows callers to use the simpler "clar style" as documented, but get the correct failure location.