546   std::vector<SourceMappingRegion> RegionStack;  member
597     RegionStack.emplace_back(Count, FalseCount, StartLoc, EndLoc);  in pushRegion()
599     return RegionStack.size() - 1;  in pushRegion()
616     assert(RegionStack.size() >= ParentIndex && "parent not in stack");  in popRegions()
617     while (RegionStack.size() > ParentIndex) {  in popRegions()
618       SourceMappingRegion &Region = RegionStack.back();  in popRegions()
623                                     : RegionStack[ParentIndex].getEndLoc();  in popRegions()
687       RegionStack.pop_back();  in popRegions()
693     assert(!RegionStack.empty() && "statement has no region");  in getRegion()
694     return RegionStack.back();  in getRegion()
817     for (SourceMappingRegion &I : llvm::reverse(RegionStack)) {  in handleFileExit()
1017     assert(RegionStack.empty() && "Regions entered but never exited");  in VisitDecl()
1299         for (size_t i = RegionStack.size(); i != Index; --i) {  in VisitSwitchStmt()
1300           if (!RegionStack[i - 1].hasEndLoc())  in VisitSwitchStmt()
1301             RegionStack[i - 1].setEndLoc(getEnd(CS->body_back()));  in VisitSwitchStmt()