Update kernel module.

test/kernel/regression/for_loop.dart.txt

 library;
 import self as self;
 import "dart:core" as core;
 
 static method main() → dynamic {
   core::int c = new core::DateTime::now().millisecondsSinceEpoch;
-  for(core::int i = 0; i.<(100); i = i.+(1)) {
+  for (core::int i = 0; i.<(100); i = i.+(1)) {
     core::print(let final dynamic #t1 = i in let final dynamic #t2 = i = #t1.+(1) in #t1);
   }
-  for(core::int i = 0; i.<(100); c.<(42) ? throw "fisk" : i = i.+(1)) {
+  for (core::int i = 0; i.<(100); c.<(42) ? throw "fisk" : i = i.+(1)) {
     core::print(let final dynamic #t3 = i in let final dynamic #t4 = i = #t3.+(1) in #t3);
   }
 }