Apply optimization after class-id propagation: instance calls without ICData are optimized by using…

runtime/vm/compiler.cc

Index: runtime/vm/compiler.cc
===================================================================
--- runtime/vm/compiler.cc	(revision 13794)
+++ runtime/vm/compiler.cc	(working copy)
@@ -194,7 +194,11 @@
         // Propagate sminess from CheckSmi to phis.
         optimizer.PropagateSminess();
 
+        // Use propagated class-ids to optimize further.
+        optimizer.ApplyClassIds();
+
         // Do optimizations that depend on the propagated type information.
+        // TODO(srdjan): Should this be called CanonicalizeComputations?
         optimizer.OptimizeComputations();
 
         // Unbox doubles.