YQL-19700: Make DateTime UDF overloads backward compatible

Follows up e9d589d43101dde8ca86955627fca9dbdaba1f7b
Follows up ed323f55ce6ca64b9a912772866d7bfb4fc1235f
Follows up 3b203e7a313e54ee57069763da5cf1b59991d66c
Follows up 99b69544bd45b52e2e6bfcd8cd51e34827a0f08d
Follows up 3afbcdd00ad47ecf35cb29bb25a5d7658ed1d5cb
Follows up ca9883df39a8c08e7f0d83bafcbb8853f243ed04
Follows up cfaa3532a6554646b11f204e6f4cc7677d428b8b
Follows up 9dcc43f4facdab5b4fca0a4079833c8534359124
commit_hash:7b8d84f03c1c623e6d076da42c5f0c3437f7acf6

(cherry picked from commit 519ccaf)

Author: igormunkin

yql/essentials/udfs/common/datetime2/datetime_udf.cpp

@@ -1983,7 +1983,13 @@ class TToConverter : public TBoxedValue {
         }
 
         if (!userType) {
-            builder.SetError("User type is missing");
+            // XXX: Function became polymorphic when overload for
+            // wide resources was implemented. Hence, to make it
+            // backward compatible with previous versions, the
+            // absence of the userType is considered as using the
+            // old version (i.e. without type awareness) that
+            // provides implementation only for narrow dates.
+            BuildSignature<TInterval, TResult>(builder, typesOnly);
             return true;
         }
 
@@ -2451,7 +2457,13 @@ class TBoundaryOfInterval: public ::NYql::NUdf::TBoxedValue {
         }
 
         if (!userType) {
-            builder.SetError("User type is missing");
+            // XXX: Function became polymorphic when overload for
+            // wide resources was implemented. Hence, to make it
+            // backward compatible with previous versions, the
+            // absence of the userType is considered as using the
+            // old version (i.e. without type awareness) that
+            // provides implementation only for narrow dates.
+            BuildSignature<TMResourceName, Boundary>(builder, typesOnly);
             return true;
         }
 
@@ -2567,7 +2579,13 @@ class TTimeOfDay: public ::NYql::NUdf::TBoxedValue {
         }
 
         if (!userType) {
-            builder.SetError("User type is missing");
+            // XXX: Function became polymorphic when overload for
+            // wide resources was implemented. Hence, to make it
+            // backward compatible with previous versions, the
+            // absence of the userType is considered as using the
+            // old version (i.e. without type awareness) that
+            // provides implementation only for narrow dates.
+            BuildSignature<TMResourceName>(builder, typesOnly);
             return true;
         }