migrate from untagged array-range dynamic ctor (assorted)

Reviewed By: Orvid

Differential Revision: D62552803

fbshipit-source-id: 66a5594083c54c3c10f0319c3248e1251d37662b

Author: yfeldblum

fbpcs/emp_games/lift/common/LiftMetrics.cpp

@@ -138,9 +138,9 @@ LiftMetrics LiftMetrics::fromJson(const std::string& str) {
 
 folly::dynamic LiftMetrics::toDynamic() const {
   auto testConvHistogramDynamic =
-      folly::dynamic(testConvHistogram.begin(), testConvHistogram.end());
+      folly::dynamic::array_range(testConvHistogram);
   auto controlConvHistogramDynamic =
-      folly::dynamic(controlConvHistogram.begin(), controlConvHistogram.end());
+      folly::dynamic::array_range(controlConvHistogram);
 
   return folly::dynamic::object("testConversions", testConversions)(
       "controlConversions", controlConversions)(