Add Python flow to bindings generation, move dummy-generating IDL files over

Source/bindings/scripts/generate-bindings.pl

 #!/usr/bin/perl -w
 #
 # Copyright (C) 2005 Apple Computer, Inc.
 # Copyright (C) 2006 Anders Carlsson <andersca@mac.com>
 # 
 # This file is part of WebKit
 # 
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Library General Public
 # License as published by the Free Software Foundation; either
 # version 2 of the License, or (at your option) any later version.
 # 
 # This library is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 # Library General Public License for more details.
 # 
 # You should have received a copy of the GNU Library General Public License
 # along with this library; see the file COPYING.LIB.  If not, write to
 # the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 # Boston, MA 02110-1301, USA.
 # 
 
-# This script is a temporary hack. 
-# Files are generated in the source directory, when they really should go
-# to the DerivedSources directory.
-# This should also eventually be a build rule driven off of .idl files
-# however a build rule only solution is blocked by several radars:
-# <rdar://problems/4251781&4251785>
-

[Nils Barth (inactive), 2013/07/08 05:24:38]

This comment is out of date.
generate-bindings.pl/generate_bindings.py are now meaningful scripts that call
the parser and code generator, and are in turn called off of build rules driven
off the IDL files (that's what the GYP Rules do!).

 use strict;
 
 use File::Path;
 use File::Basename;
 use Getopt::Long;
 use Text::ParseWords;
 use Cwd;
 
 use IDLParser;
 use CodeGeneratorV8;
 use IDLSerializer;
 
 my @idlDirectories;
 my $outputDirectory;
 my $defines;
-my $filename;

[Nils Barth (inactive), 2013/07/08 05:24:38]

Unused, remove.

 my $preprocessor;
 my $verbose;
 my $supplementalDependencyFile;
 my $additionalIdlFiles;
 my $idlAttributesFile;
 my $writeFileOnlyIfChanged;
 
 GetOptions('include=s@' => \@idlDirectories,
            'outputDir=s' => \$outputDirectory,
            'defines=s' => \$defines,
-           'filename=s' => \$filename,
            'preprocessor=s' => \$preprocessor,
            'verbose' => \$verbose,
            'supplementalDependencyFile=s' => \$supplementalDependencyFile,
            'additionalIdlFiles=s' => \$additionalIdlFiles,
            'idlAttributesFile=s' => \$idlAttributesFile,
            'write-file-only-if-changed=s' => \$writeFileOnlyIfChanged);
 
 my $targetIdlFile = $ARGV[0];
 
 die('Must specify input file.') unless defined($targetIdlFile);
@@ skipping 233 matching lines @@
                 last OUTER;
             }
         }
     }
     if ($error) {
         die "IDL ATTRIBUTE CHECKER ERROR: $error
 If you want to add a new IDL attribute, you need to add it to bindings/scripts/IDLAttributes.txt and add explanations to the Blink IDL document (http://chromium.org/blink/webidl).
 ";
     }
 }