Revert temporary patch to debug Windows breakage.

This reverts commit 0a248208.

src/pl/plpgsql/src/pl_comp.c

@@ -285,7 +285,6 @@ do_compile(FunctionCallInfo fcinfo,
 	int		   *in_arg_varnos = NULL;
 	PLpgSQL_variable **out_arg_variables;
 	MemoryContext func_cxt;
-	PLpgSQL_trigtype fn_is_trigger;
 
 	/*
 	 * Setup the scanner input and error info.	We assume that this function
@@ -353,12 +352,11 @@ do_compile(FunctionCallInfo fcinfo,
 	function->resolve_option = plpgsql_variable_conflict;
 
 	if (is_dml_trigger)
-		fn_is_trigger = PLPGSQL_DML_TRIGGER;
+		function->fn_is_trigger = PLPGSQL_DML_TRIGGER;
 	else if (is_event_trigger)
-		fn_is_trigger = PLPGSQL_EVENT_TRIGGER;
+		function->fn_is_trigger = PLPGSQL_EVENT_TRIGGER;
 	else
-		fn_is_trigger = PLPGSQL_NOT_TRIGGER;
-	function->fn_is_trigger = fn_is_trigger;
+		function->fn_is_trigger = PLPGSQL_NOT_TRIGGER;
 
 	/*
 	 * Initialize the compiler, particularly the namespace stack.  The
@@ -376,7 +374,6 @@ do_compile(FunctionCallInfo fcinfo,
 									 sizeof(PLpgSQL_datum *) * datums_alloc);
 	datums_last = 0;
 
-	Assert(fn_is_trigger == function->fn_is_trigger);
 	switch (function->fn_is_trigger)
 	{
 		case PLPGSQL_NOT_TRIGGER:
@@ -540,13 +537,9 @@ do_compile(FunctionCallInfo fcinfo,
 					rettypeid == RECORDOID)
 					 /* okay */ ;
 				else if (rettypeid == TRIGGEROID || rettypeid == EVTTRIGGEROID)
-				{
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("trigger functions can only be called as triggers"),
-							 errhint("CALLED_AS_TRIGGER=%d CALLED_AS_EVENT_TRIGGER=%d",
-							CALLED_AS_TRIGGER(fcinfo), CALLED_AS_EVENT_TRIGGER(fcinfo))));
-				}
+							 errmsg("trigger functions can only be called as triggers")));
 				else
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),