Fix handling of 'c: if (0) break c; else ()' where a parser optimization

src/parser.cc

Index: src/parser.cc
===================================================================
--- src/parser.cc	(revision 10603)
+++ src/parser.cc	(working copy)
@@ -2128,6 +2128,7 @@
   // Parse labeled break statements that target themselves into
   // empty statements, e.g. 'l1: l2: l3: break l2;'
   if (!label.is_null() && ContainsLabel(labels, label)) {
+    ExpectSemicolon(CHECK_OK);
     return EmptyStatement();
   }
   BreakableStatement* target = NULL;