a6c59e0792
When functions exist for some but not all run lines we need to be careful when selecting the prefix. So far, a common prefix was potentially chosen as there was never a "conflict" that would have caused otherwise. With this patch we avoid common prefixes if they are used by run lines that do not emit the function. Reviewed By: lebedev.ri Differential Revision: https://reviews.llvm.org/D68850