Add availableSince for every stdlib function and require it in a test…

… so we don't get any more gaps

doc/_stdlib_gen/run_tests.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+
+# Copyright 2015 Google Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+TEST_SUITE_NAME="${TEST_SUITE_NAME:-$0}"
+
+cd $(dirname $0)
+
+JSONNET_BIN="${JSONNET_BIN:-../../jsonnet}"
+
+source ../../test_suite/tests.source
+
+init
+
+shopt -s nullglob
+
+FAILED=0
+SUCCESS=0
+
+test_eval "$JSONNET_BIN" "stdlib-content-test.jsonnet" 0 "true" "PLAIN"
+
+deinit
+
+if [ "$FAILED" -eq 0 ] ; then
+    echo "$TEST_SUITE_NAME: All $EXECUTED tests executed correctly."
+else
+    echo "$TEST_SUITE_NAME: $FAILED / $EXECUTED tests failed."
+    exit 1
+fi
+
+

doc/_stdlib_gen/stdlib-content-test.jsonnet

@@ -0,0 +1,13 @@
+local stdlib_content = import 'stdlib-content.jsonnet';
+
+std.all([
+  if !std.objectHas(field, 'availableSince') then
+    error 'No availableSince field for std.%s' % field.name
+  else if field.availableSince[0] == 'v' then
+    error 'availableSince field for std.%s should not begin with a "v" (got %s)'
+          % [field.name, field.availableSince]
+  else
+    true
+  for group in stdlib_content.groups
+  for field in group.fields
+])