don't parse the options that should be passed to fish scripts

This commit makes fish_parse_opt stop at first non-option argument,
which expected as fish script name and pass the remaining argument to
that script. I also updated the test cases.

tests/test.fish

@@ -4,6 +4,43 @@
 # instad of using autotest to provide additional
 # testing for fish. :-)
 
+
+if [ "$argv" != '-n' ]
+  # begin...end has bug in error redirecting...
+  begin
+    ../fish -n ./test.fish ^top.tmp.err
+    ../fish -n ./test.fish -n ^^top.tmp.err
+    ../fish ./test.fish -n ^^top.tmp.err
+  end | tee top.tmp.out
+  echo $status >top.tmp.status
+  set res ok
+  if diff top.tmp.out top.out >/dev/null
+  else
+	set res fail
+	echo Output differs for file test.fish
+  end
+
+  if diff top.tmp.err top.err >/dev/null
+  else
+	set res fail
+	echo Error output differs for file test.fish
+  end
+
+  if test (cat top.tmp.status) = (cat top.status)
+  else
+	set res fail
+	echo Exit status differs for file test.fish
+  end
+
+  if test $res = ok;
+	echo File test.fish tested ok
+  else
+	echo File test.fish failed tests
+  end;
+
+  exit
+end
+
 echo Testing high level script functionality
 
 for i in *.in

tests/top.err

@@ -0,0 +1,6 @@
+fish: Expected redirection specification, got token of type '$i'
+/usr/local/src/grissioms-fish-shell/tests/test.fish (line 51):   ../fish <$i >tmp.out ^tmp.err
+                                                                          ^
+fish: Expected redirection specification, got token of type '$i'
+/usr/local/src/grissioms-fish-shell/tests/test.fish (line 51):   ../fish <$i >tmp.out ^tmp.err
+                                                                          ^

tests/top.out

@@ -0,0 +1,6 @@
+Testing high level script functionality
+File test1.in tested ok
+File test2.in tested ok
+File test3.in tested ok
+File test4.in tested ok
+File test5.in tested ok

tests/top.status

@@ -0,0 +1 @@
+0