code: function() {
  			var context = this.loopContext;
  			var forkContext = this.forkContext;
  			var temp = ForkContext.newEmpty(forkContext);
  
  			temp.add(context.prevSegments);
  			var rightSegments = temp.makeNext(-1, -1);
  
  			// Update state.
  			context.endOfLeftSegments = forkContext.head;
  			forkContext.replaceHead(rightSegments);
  		}
docs: Makes a code path segment for the right part of a ForInStatement and a
  ForOfStatement.
  
  @returns {void}