Add support for [Global] / [PrimaryGlobal] IDL extended attributes

Source/bindings/scripts/utilities.py

Index: Source/bindings/scripts/utilities.py
diff --git a/Source/bindings/scripts/utilities.py b/Source/bindings/scripts/utilities.py
index 0f16281b79fb434dd877b586cb211b245dc9a9ad..747d64e9be5fffbb3523c086300ac322ecda39e9 100644
--- a/Source/bindings/scripts/utilities.py
+++ b/Source/bindings/scripts/utilities.py
@@ -93,13 +93,13 @@ def get_parent_interface(file_contents):
 
 
 def get_interface_extended_attributes_from_idl(file_contents):
-    match = re.search(r'\[(.*)\]\s*'
+    match = re.search(r'^\s*\[(.*)\]\s*'

[Inactive, 2014/05/04 21:40:39]

Without this fix, the comments before the extended attributes in Window.idl was
confusing the regex.

Parsed extended attributes before:
{'WillBeGarbageCollected': '', 'Custom': 'ToV8', 'ImplementedAs': 'DOMWindow',
'DoNotCheckSecurity]\n[\n    PrimaryGlobal': '', 'CheckSecurity': 'Frame'}

after:
{'WillBeGarbageCollected': '', 'Custom': 'ToV8', 'ImplementedAs': 'DOMWindow',
'PrimaryGlobal': '', 'CheckSecurity': 'Frame'}

The DoNotCheckSecurity is in a comments are shouldn't be in the parsed
attributes, also, the first real extended attribute (PrimaryGlobal) was ignored
because it was appended to the bad extended attribute.

[Nils Barth (inactive), 2014/05/07 01:55:57]

Hmm...could you instead try putting the # Strip comments
section *before* this main match?
That's more correct and less obscure.
(Properly should strip comments from whole file first, not just from match.)

[Inactive, 2014/05/07 15:45:12]

Done.

                       r'((callback|partial)\s+)?'
                       r'(interface|exception)\s+'
                       r'\w+\s*'
                       r'(:\s*\w+\s*)?'
                       r'{',
-                      file_contents, flags=re.DOTALL)
+                      file_contents, flags=re.DOTALL | re.MULTILINE)
     if not match:
         return {}
     # Strip comments