IDL: Add error handlings to avoid infinite loops

tools/idl_parser/idl_parser.py

Index: tools/idl_parser/idl_parser.py
diff --git a/tools/idl_parser/idl_parser.py b/tools/idl_parser/idl_parser.py
index 9b63f94cf83cab79e32426f78f85218ab0a0ba3c..16ecc6e93615e572ee9a62fc0cfc112dbb295996 100755
--- a/tools/idl_parser/idl_parser.py
+++ b/tools/idl_parser/idl_parser.py
@@ -283,6 +283,12 @@ class IDLParser(object):
     """Dictionary : DICTIONARY error ';'"""
     p[0] = self.BuildError(p, 'Dictionary')
 
+  # [11.2] Error recovery for regular Dictionary
+  # (for errors inside dictionary definition)
+  def p_DictionaryError2(self, p):
+    """Dictionary : DICTIONARY identifier Inheritance '{' error"""
+    p[0] = self.BuildError(p, 'Dictionary')
+
   # [12]
   def p_DictionaryMembers(self, p):
     """DictionaryMembers : ExtendedAttributeList DictionaryMember DictionaryMembers
@@ -590,6 +596,11 @@ class IDLParser(object):
     if len(p) > 1:
       p[0] = ListFromConcat(p[2], p[3])
 
+  # [54.1] Arguments error recovery
+  def p_ArgumentsError(self, p):
+    """Arguments : ',' error"""
+    p[0] = self.BuildError(p, 'Arguments')
+
   # [55]
   def p_Argument(self, p):
     """Argument : ExtendedAttributeList OptionalOrRequiredArgument"""