Fixes #5167 and related problems (#5475)

This commit returns to a bit less strict checking of the number
of macro arguments, because some old immediate macros rely on a
behavior where even the arity of the macro is not being checked.

It may be better if such macros are just declared to use varargs[expr],
but this remains for another day.

compiler/evaltempl.nim

@@ -80,9 +80,14 @@ proc evalTemplateArgs(n: PNode, s: PSym; fromHlo: bool): PNode =
     expectedRegularParams = <s.typ.len
     givenRegularParams = totalParams - genericParams
   if givenRegularParams < 0: givenRegularParams = 0
+
   if totalParams > expectedRegularParams + genericParams:
     globalError(n.info, errWrongNumberOfArguments)
 
+  if totalParams < genericParams:
+    globalError(n.info, errMissingGenericParamsForTemplate,
+                n.renderTree)
+
   result = newNodeI(nkArgList, n.info)
   for i in 1 .. givenRegularParams:
     result.addSon n.sons[i]