[runtime][ic] Constant field tracking support.

test/mjsunit/compiler/concurrent-invalidate-transition-map.js

Index: test/mjsunit/compiler/concurrent-invalidate-transition-map.js
diff --git a/test/mjsunit/compiler/concurrent-invalidate-transition-map.js b/test/mjsunit/compiler/concurrent-invalidate-transition-map.js
index 09e720627b350de5e817c7ec67af46a1306ec2fc..aed6311b83f53250eccf3f806195ebb4e0b2fdcf 100644
--- a/test/mjsunit/compiler/concurrent-invalidate-transition-map.js
+++ b/test/mjsunit/compiler/concurrent-invalidate-transition-map.js
@@ -42,6 +42,9 @@ function new_object() {
 }
 
 function add_field(obj) {
+  // Assign twice to make the field non-constant.
+  // TODO(ishell): update test once constant field tracking is done.
+  obj.c = 0;
   obj.c = 3;
 }
 var obj1 = new_object();