eliminate many more simple uses of error_state * Cell.cc, __ichol__.cc, __ilu__.cc, balance.cc, bsxfun.cc, colloc.cc, det.cc, dlmread.cc, dynamic-ld.cc, eig.cc, fft.cc, fft2.cc, fftn.cc, gcd.cc, getgrent.cc, getpwent.cc, givens.cc, hess.cc, input.cc, levenshtein.cc, load-path.cc, lookup.cc, ls-mat-ascii.cc, ls-mat4.cc, lsode.cc, lu.cc, max.cc, md5sum.cc, mex.cc, pager.cc, pinv.cc, pr-output.cc, qz.cc, schur.cc, sparse.cc, sqrtm.cc, str2double.cc, strfns.cc, sub2ind.cc, sysdep.cc, time.cc, toplev.cc, tril.cc, tsearch.cc, typecast.cc, __init_gnuplot__.cc, __magick_read__.cc, __osmesa_print__.cc, amd.cc, audiodevinfo.cc, dmperm.cc, fftw.cc, symrcm.cc, ov-base-diag.cc, ov-base-sparse.cc, ov-base.cc, ov-bool-sparse.cc, ov-builtin.cc, ov-complex.cc, ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-diag.cc, ov-flt-cx-mat.cc, ov-flt-re-diag.cc, ov-flt-re-mat.cc, ov-lazy-idx.cc, ov-mex-fcn.cc, ov-perm.cc, ov-range.cc, ov-re-diag.cc, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc, op-bm-b.cc, op-bm-bm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-str-m.cc, op-str-s.cc, oct-parse.in.yy, pt-cbinop.cc, pt-colon.cc, pt-decl.cc, pt-exp.cc, pt-id.cc, pt-misc.cc, pt-select.cc, pt-unop.cc: Eliminate simple uses of error_state.

--- a/libinterp/parse-tree/pt-misc.cc	Mon Oct 05 12:03:16 2015 -0700
+++ b/libinterp/parse-tree/pt-misc.cc	Mon Oct 05 19:29:36 2015 -0400
@@ -92,30 +92,27 @@
         }
     }
 
-  if (! error_state)
-    {
-      std::string va_type = (type == in ? "varargin" : "varargout");
+  std::string va_type = (type == in ? "varargin" : "varargout");
 
-      size_t len = length ();
+  size_t len = length ();
 
-      if (len > 0)
-        {
-          tree_decl_elt *elt = back ();
+  if (len > 0)
+    {
+      tree_decl_elt *elt = back ();
 
-          tree_identifier *id = elt->ident ();
+      tree_identifier *id = elt->ident ();
 
-          if (id && id->name () == va_type)
-            {
-              if (len == 1)
-                mark_varargs_only ();
-              else
-                mark_varargs ();
+      if (id && id->name () == va_type)
+        {
+          if (len == 1)
+            mark_varargs_only ();
+          else
+            mark_varargs ();
 
-              iterator p = end ();
-              --p;
-              delete *p;
-              erase (p);
-            }
+          iterator p = end ();
+          --p;
+          delete *p;
+          erase (p);
         }
     }