Bug 1184597: Remove redundant condition checking; r=efaust

--HG--
extra : rebase_source : d0a93cd0c1d125c5ca8f17337d684f7a68c6c2aa

js/src/frontend/Parser.cpp

@@ -4945,7 +4945,7 @@ Parser<FullParseHandler>::forStatement(YieldHandling yieldHandling)
          * rhs of 'in'.
          */
         if (headKind == PNK_FOROF) {
-            forStmt.type = (headKind == PNK_FOROF) ? STMT_FOR_OF_LOOP : STMT_FOR_IN_LOOP;
+            forStmt.type = STMT_FOR_OF_LOOP;
             if (isForEach) {
                 report(ParseError, false, null(), JSMSG_BAD_FOR_EACH_LOOP);
                 return null();
@@ -5037,7 +5037,7 @@ Parser<FullParseHandler>::forStatement(YieldHandling yieldHandling)
             return null();
         }
 
-        headKind = PNK_FORHEAD;
+        MOZ_ASSERT(headKind == PNK_FORHEAD);
 
         if (blockObj) {
             // Ensure here that the previously-unchecked assignment mandate for