Convert some compiler passes to preserve valid def-use chains.

runtime/vm/il_printer.cc

Index: runtime/vm/il_printer.cc
diff --git a/runtime/vm/il_printer.cc b/runtime/vm/il_printer.cc
index 02db6e237a1ffe642908f9b0f3a1d533fa656a33..9fc644a273511d8e7d6ac141eaf8e688417d29f3 100644
--- a/runtime/vm/il_printer.cc
+++ b/runtime/vm/il_printer.cc
@@ -319,7 +319,7 @@ void ArgumentDefinitionTestInstr::PrintOperandsTo(BufferFormatter* f) const {
 void ClosureCallInstr::PrintOperandsTo(BufferFormatter* f) const {
   for (intptr_t i = 0; i < ArgumentCount(); ++i) {
     if (i > 0) f->Print(", ");
-    ArgumentAt(i)->value()->PrintTo(f);
+    PushArgumentAt(i)->value()->PrintTo(f);
   }
 }
 
@@ -328,7 +328,7 @@ void InstanceCallInstr::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("%s", function_name().ToCString());
   for (intptr_t i = 0; i < ArgumentCount(); ++i) {
     f->Print(", ");
-    ArgumentAt(i)->value()->PrintTo(f);
+    PushArgumentAt(i)->value()->PrintTo(f);
   }
   if (HasICData()) {
     PrintICData(f, *ic_data());
@@ -340,7 +340,7 @@ void PolymorphicInstanceCallInstr::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("%s", instance_call()->function_name().ToCString());
   for (intptr_t i = 0; i < ArgumentCount(); ++i) {
     f->Print(", ");
-    ArgumentAt(i)->value()->PrintTo(f);
+    PushArgumentAt(i)->value()->PrintTo(f);
   }
   PrintICData(f, ic_data());
 }
@@ -368,7 +368,7 @@ void StaticCallInstr::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("%s ", String::Handle(function().name()).ToCString());
   for (intptr_t i = 0; i < ArgumentCount(); ++i) {
     if (i > 0) f->Print(", ");
-    ArgumentAt(i)->value()->PrintTo(f);
+    PushArgumentAt(i)->value()->PrintTo(f);
   }
 }
 
@@ -440,7 +440,7 @@ void AllocateObjectInstr::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("%s", Class::Handle(constructor().Owner()).ToCString());
   for (intptr_t i = 0; i < ArgumentCount(); i++) {
     f->Print(", ");
-    ArgumentAt(i)->value()->PrintTo(f);
+    PushArgumentAt(i)->value()->PrintTo(f);
   }
 }
 
@@ -458,7 +458,7 @@ void AllocateObjectWithBoundsCheckInstr::PrintOperandsTo(
 void CreateArrayInstr::PrintOperandsTo(BufferFormatter* f) const {
   for (int i = 0; i < ArgumentCount(); ++i) {
     if (i != 0) f->Print(", ");
-    ArgumentAt(i)->value()->PrintTo(f);
+    PushArgumentAt(i)->value()->PrintTo(f);
   }
   if (ArgumentCount() > 0) f->Print(", ");
   element_type()->PrintTo(f);
@@ -469,7 +469,7 @@ void CreateClosureInstr::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("%s", function().ToCString());
   for (intptr_t i = 0; i < ArgumentCount(); ++i) {
     if (i > 0) f->Print(", ");
-    ArgumentAt(i)->value()->PrintTo(f);
+    PushArgumentAt(i)->value()->PrintTo(f);
   }
 }