Add WebIDL compliant parser plus tests

tools/idl_parser/test_parser/callback.idl

+/* Copyright (c) 2013 The Chromium Authors. All rights reserved.
+   Use of this source code is governed by a BSD-style license that can be
+  found in the LICENSE file. */
+
+/* Test Callback productions
+
+Run with --test to generate an AST and verify that all comments accurately
+reflect the state of the Nodes.
+
+BUILD Type(Name)
+This comment signals that a node of type <Type> is created with the
+name <Name>.
+
+ERROR Error String
+This comment signals that a error of <Error String> is generated.  The error
+is not assigned to a node, but are expected in order.
+
+PROP Key=Value
+This comment signals that a property has been set on the Node such that
+<Key> = <Value>.
+
+TREE
+Type(Name)
+  Type(Name)
+  Type(Name)
+    Type(Name)
+    ...
+This comment signals that a tree of nodes matching the BUILD comment
+symatics should exist.  This is an exact match.
+*/
+
+
+/* TREE
+ *Callback(VoidFunc)
+ *  Type()
+ *    PrimitiveType(void)
+ *  Arguments()
+ */
+callback VoidFunc = void();
+
+/* TREE
+ *Callback(VoidFuncLongErr)
+ *  Type()
+ *    PrimitiveType(void)
+ *  Arguments()
+ *    Error(Unexpected ).)
+ */
+callback VoidFuncLongErr = void ( long );
+
+/* TREE
+ *Callback(VoidFuncLong)
+ *  Type()
+ *    PrimitiveType(void)
+ *  Arguments()
+ *    Argument(L1)
+ *      Type()
+ *        PrimitiveType(long)
+ */
+callback VoidFuncLong = void ( long L1 );
+
+/* TREE
+ *Callback(VoidFuncLongArray)
+ *  Type()
+ *    PrimitiveType(void)
+ *  Arguments()
+ *    Argument(L1)
+ *      Type()
+ *        PrimitiveType(long)
+ *        Array()
+ */
+callback VoidFuncLongArray = void ( long[] L1 );
+
+/* TREE
+ *Callback(VoidFuncLongArray5)
+ *  Type()
+ *    PrimitiveType(void)
+ *  Arguments()
+ *    Argument(L1)
+ *      Type()
+ *        PrimitiveType(long)
+ *        Array(5)
+ */
+callback VoidFuncLongArray5 = void ( long[5] L1 );
+
+
+/* TREE
+ *Callback(VoidFuncLongArray54)
+ *  Type()
+ *    PrimitiveType(void)
+ *  Arguments()
+ *    Argument(L1)
+ *      Type()
+ *        PrimitiveType(long)
+ *        Array(5)
+ *    Argument(L2)
+ *      Type()
+ *        PrimitiveType(long long)
+ *        Array(4)
+ */
+callback VoidFuncLongArray54 = void ( long[5] L1, long long [4] L2 );
+
+
+/* TREE
+ *Callback(VoidFuncLongIdent)
+ *  Type()
+ *    PrimitiveType(void)
+ *  Arguments()
+ *    Argument(L1)
+ *      Type()
+ *        PrimitiveType(long)
+ *        Array(5)
+ *    Argument(L2)
+ *      Type()
+ *        Typeref(VoidFuncLongArray)
+ */
+callback VoidFuncLongIdent = void ( long[5] L1, VoidFuncLongArray L2 );