For 0.20.0. Repros when "funcv(0)" in the code below is the goto target:
#include <vector>
std::vector<int> funcv(int){}
int funcv(double){}
Both definitions get returned instead of the 1st. "Caused" by the default "allocator" 2nd param on the vector. We fixed the case when vector is used as a param, but missed the return type case (it didn't seem important enough to delay 0.20.0).
UPDATE:
Should be fixed with 0.21.0-insiders (auto installed if "C_Cpp.updateChannel": "Insiders" is set, or manually installed from the offline vsix). Let us know if you find any problems with it.