Add hasRowSecurity to copyfuncs/outfuncs

The RLS patch added a hasRowSecurity field to PlannerGlobal and
PlannedStmt but didn't update nodes/copyfuncs.c and nodes/outfuncs.c to
reflect those additional fields.

Correct that by adding entries to the appropriate functions for those
fields.

Pointed out by Robert.

src/backend/nodes/copyfuncs.c

@@ -93,6 +93,7 @@ _copyPlannedStmt(const PlannedStmt *from)
 	COPY_NODE_FIELD(relationOids);
 	COPY_NODE_FIELD(invalItems);
 	COPY_SCALAR_FIELD(nParamExec);
+	COPY_SCALAR_FIELD(hasRowSecurity);
 
 	return newnode;
 }

src/backend/nodes/outfuncs.c

@@ -255,6 +255,7 @@ _outPlannedStmt(StringInfo str, const PlannedStmt *node)
 	WRITE_NODE_FIELD(relationOids);
 	WRITE_NODE_FIELD(invalItems);
 	WRITE_INT_FIELD(nParamExec);
+	WRITE_BOOL_FIELD(hasRowSecurity);
 }
 
 /*
@@ -1719,6 +1720,7 @@ _outPlannerGlobal(StringInfo str, const PlannerGlobal *node)
 	WRITE_UINT_FIELD(lastPHId);
 	WRITE_UINT_FIELD(lastRowMarkId);
 	WRITE_BOOL_FIELD(transientPlan);
+	WRITE_BOOL_FIELD(hasRowSecurity);
 }
 
 static void