Fix nimsuggest not suggesting fields in when theres static parameters (#21189)

Don't check against empty arguments

Add test case

compiler/sigmatch.nim

@@ -2055,7 +2055,7 @@ proc paramTypesMatchAux(m: var TCandidate, f, a: PType,
          a.n == nil and
          tfGenericTypeParam notin a.flags:
         return newNodeIT(nkType, argOrig.info, makeTypeFromExpr(c, arg))
-    else:
+    elif arg.kind != nkEmpty:
       var evaluated = c.semTryConstExpr(c, arg)
       if evaluated != nil:
         # Don't build the type in-place because `evaluated` and `arg` may point