Add missing changes from ARCH removal.

I somehow didn't upload these fixes from the review. So doing that
now.

Test: Unit tests pass.
Change-Id: Ia17e480eb972db4f7be6947c0e6567632c65431f
diff --git a/scripts/symbol.py b/scripts/symbol.py
index bfdc29e..f4c2395 100755
--- a/scripts/symbol.py
+++ b/scripts/symbol.py
@@ -580,7 +580,7 @@
   def test_nested(self):
     self.assertEqual(FormatSymbolWithoutParameters("foo(int i)::bar(int j)"), "foo::bar")
 
-  def test_unballanced(self):
+  def test_unbalanced(self):
     self.assertEqual(FormatSymbolWithoutParameters("foo(bar(int i)"), "foo(bar(int i)")
     self.assertEqual(FormatSymbolWithoutParameters("foo)bar(int i)"), "foo)bar(int i)")
     self.assertEqual(FormatSymbolWithoutParameters("foo<bar(int i)"), "foo<bar(int i)")