Make adoption agency loop condition more explicit

Author: inikulin

lib/parser/index.js

@@ -890,19 +890,13 @@ function aaObtainFurthestBlock(p, formattingElementEntry) {
 
 //Step 13 of the algorithm
 function aaInnerLoop(p, furthestBlock, formattingElement) {
-    var element = null,
-        lastElement = furthestBlock,
+    var lastElement = furthestBlock,
         nextElement = p.openElements.getCommonAncestor(furthestBlock);
 
-    for (var i = 0; ; i++) {
-        element = nextElement;
-
+    for (var i = 0, element = nextElement; element !== formattingElement; i++, element = nextElement) {
         //NOTE: store next element for the next loop iteration (it may be deleted from the stack by step 9.5)
         nextElement = p.openElements.getCommonAncestor(element);
 
-        if (element === formattingElement)
-            break;
-
         var elementEntry = p.activeFormattingElements.getElementEntry(element),
             counterOverflow = elementEntry && i >= AA_INNER_LOOP_ITER,
             shouldRemoveFromOpenElements = !elementEntry || counterOverflow;