Improve code for checked instance calls (polymorphic calls) and expand printing of PolymorphicInsta…

runtime/vm/intermediate_language_ia32.cc

Index: runtime/vm/intermediate_language_ia32.cc
===================================================================
--- runtime/vm/intermediate_language_ia32.cc	(revision 9512)
+++ runtime/vm/intermediate_language_ia32.cc	(working copy)
@@ -668,17 +668,16 @@
   __ movl(EAX, Address(ESP, (kNumArguments - 1) * kWordSize));
   __ testl(EAX, Immediate(kSmiTagMask));
   __ j(ZERO, deopt);
-  Label done;
   __ LoadClassId(EDI, EAX);
   compiler->EmitTestAndCall(ic_data,
                             EDI,  // Class id register.
                             kNumArguments,
                             Array::Handle(),  // No named arguments.
-                            deopt, &done,  // Labels.
+                            deopt,  // Deoptimize target.
+                            NULL,   // Fallthrough when done.
                             comp->cid(),
                             comp->token_pos(),
                             comp->try_index());
-  __ Bind(&done);
 }
 
 
@@ -807,17 +806,16 @@
   __ movl(EAX, Address(ESP, (kNumArguments - 1) * kWordSize));
   __ testl(EAX, Immediate(kSmiTagMask));
   __ j(ZERO, deopt);
-  Label done;
   __ LoadClassId(EDI, EAX);
   compiler->EmitTestAndCall(ic_data,
                             EDI,  // Class id register.
                             kNumArguments,
                             Array::Handle(),  // No named arguments.
-                            deopt, &done,  // Labels.
+                            deopt,  // Deoptimize target.
+                            NULL,   // Fallthrough when done.
                             comp->cid(),
                             comp->token_pos(),
                             comp->try_index());
-  __ Bind(&done);
 }
 
 
@@ -1958,7 +1956,8 @@
                             EDI,  // Class id register.
                             instance_call()->ArgumentCount(),
                             instance_call()->argument_names(),
-                            deopt, &done,  // Labels.
+                            deopt,
+                            (is_smi_label == &handle_smi) ? &done : NULL,
                             instance_call()->cid(),
                             instance_call()->token_pos(),
                             instance_call()->try_index());