code: function() {
  			var context = this.loopContext;
  			var choiceContext = this.choiceContext;
  			var forkContext = this.forkContext;
  
  			// Make the next paths of the test.
  			if (context.testSegments) {
  				finalizeTestSegmentsOfFor(
  					context,
  					choiceContext,
  					forkContext.head);
  			} else {
  				context.endOfInitSegments = forkContext.head;
  			}
  
  			// Update state.
  			var updateSegments = forkContext.makeDisconnected(-1, -1);
  
  			context.continueDestSegments = context.updateSegments = updateSegments;
  			forkContext.replaceHead(updateSegments);
  		}
docs: Makes a code path segment for the update part of a ForStatement.
  
  @returns {void}