PATCH (not to be comitted): Support for printing instruction statistics

runtime/vm/intermediate_language.cc

Index: runtime/vm/intermediate_language.cc
diff --git a/runtime/vm/intermediate_language.cc b/runtime/vm/intermediate_language.cc
index 373aa4837298944ff54ad66012e352e8488f9196..e0c705c5dc1ec4059e17e50053ea7000f86ce096 100644
--- a/runtime/vm/intermediate_language.cc
+++ b/runtime/vm/intermediate_language.cc
@@ -24,6 +24,7 @@
 #include "vm/scopes.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
+#include "vm/code_statistics.h"
 
 #include "vm/il_printer.h"
 
@@ -3149,12 +3150,16 @@ bool PolymorphicInstanceCallInstr::HasSingleRecognizedTarget() const {
 void PolymorphicInstanceCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   ASSERT(ic_data().NumArgsTested() == 1);
   if (!with_checks()) {
+    compiler->SpecialStatsBegin(
+        CombinedCodeStatistics::kPolymorphicInstanceCallAsStaticCall);
     ASSERT(ic_data().HasOneTarget());
     const Function& target = Function::ZoneHandle(ic_data().GetTargetAt(0));
     compiler->GenerateStaticCall(deopt_id(), instance_call()->token_pos(),
                                  target, instance_call()->ArgumentCount(),
                                  instance_call()->argument_names(), locs(),
                                  ICData::Handle());
+    compiler->SpecialStatsEnd(
+        CombinedCodeStatistics::kPolymorphicInstanceCallAsStaticCall);
     return;
   }