Mojo: Implement support for |Foo&| mojom syntax

mojo/public/tools/bindings/pylib/mojom/parse/parser.py

Index: mojo/public/tools/bindings/pylib/mojom/parse/parser.py
diff --git a/mojo/public/tools/bindings/pylib/mojom/parse/parser.py b/mojo/public/tools/bindings/pylib/mojom/parse/parser.py
index 694594ab6c4d70809e688f1790b6b6c40fdff5ff..3898e93437d3de1dfda884ff45c1b068a44e01e7 100644
--- a/mojo/public/tools/bindings/pylib/mojom/parse/parser.py
+++ b/mojo/public/tools/bindings/pylib/mojom/parse/parser.py
@@ -187,7 +187,8 @@ class Parser(object):
 
   def p_typename(self, p):
     """typename : basictypename
-                | array"""
+                | array
+                | interfacerequest"""
     p[0] = p[1]
 
   def p_basictypename(self, p):
@@ -216,6 +217,10 @@ class Parser(object):
     """array : typename LBRACKET RBRACKET"""
     p[0] = p[1] + "[]"
 
+  def p_interfacerequest(self, p):
+    """interfacerequest : identifier AMP"""
+    p[0] = p[1] + "&"
+
   def p_ordinal(self, p):
     """ordinal : ORDINAL
                | """