Support for type dynamic in VM

runtime/vm/intermediate_language_x64.cc

Index: runtime/vm/intermediate_language_x64.cc
===================================================================
--- runtime/vm/intermediate_language_x64.cc	(revision 13630)
+++ runtime/vm/intermediate_language_x64.cc	(working copy)
@@ -1161,7 +1161,7 @@
   // 'instantiator_reg' is the instantiator AbstractTypeArguments object
   // (or null).
   // If the instantiator is null and if the type argument vector
-  // instantiated from null becomes a vector of Dynamic, then use null as
+  // instantiated from null becomes a vector of dynamic, then use null as
   // the type arguments.
   Label type_arguments_instantiated;
   const intptr_t len = type_arguments().Length();
@@ -1222,7 +1222,7 @@
   // instantiator_reg is the instantiator type argument vector, i.e. an
   // AbstractTypeArguments object (or null).
   // If the instantiator is null and if the type argument vector
-  // instantiated from null becomes a vector of Dynamic, then use null as
+  // instantiated from null becomes a vector of dynamic, then use null as
   // the type arguments.
   Label type_arguments_instantiated;
   const intptr_t len = type_arguments().Length();
@@ -1276,7 +1276,7 @@
 
   // instantiator_reg is the instantiator AbstractTypeArguments object
   // (or null).  If the instantiator is null and if the type argument vector
-  // instantiated from null becomes a vector of Dynamic, then use null as
+  // instantiated from null becomes a vector of dynamic, then use null as
   // the type arguments and do not pass the instantiator.
   Label done;
   const intptr_t len = type_arguments().Length();