Track live instance and allocation counts for classes

runtime/vm/intermediate_language_ia32.cc

Index: runtime/vm/intermediate_language_ia32.cc
diff --git a/runtime/vm/intermediate_language_ia32.cc b/runtime/vm/intermediate_language_ia32.cc
index 8e067d60d71fa826c898fea1b9c636c40db8fd45..1239b42a1de88161fa9dfe3ced76cd39e1543dac 100644
--- a/runtime/vm/intermediate_language_ia32.cc
+++ b/runtime/vm/intermediate_language_ia32.cc
@@ -2640,7 +2640,8 @@ void BoxDoubleInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   __ TryAllocate(compiler->double_class(),
                  slow_path->entry_label(),
                  Assembler::kFarJump,
-                 out_reg);
+                 out_reg,
+                 kNoRegister);
   __ Bind(slow_path->exit_label());
   __ movsd(FieldAddress(out_reg, Double::value_offset()), value);
 }
@@ -2747,7 +2748,8 @@ void BoxFloat32x4Instr::EmitNativeCode(FlowGraphCompiler* compiler) {
   __ TryAllocate(compiler->float32x4_class(),
                  slow_path->entry_label(),
                  Assembler::kFarJump,
-                 out_reg);
+                 out_reg,
+                 kNoRegister);
   __ Bind(slow_path->exit_label());
   __ movups(FieldAddress(out_reg, Float32x4::value_offset()), value);
 }
@@ -2841,7 +2843,8 @@ void BoxInt32x4Instr::EmitNativeCode(FlowGraphCompiler* compiler) {
   __ TryAllocate(compiler->int32x4_class(),
                  slow_path->entry_label(),
                  Assembler::kFarJump,
-                 out_reg);
+                 out_reg,
+                 kNoRegister);
   __ Bind(slow_path->exit_label());
   __ movups(FieldAddress(out_reg, Int32x4::value_offset()), value);
 }
@@ -4293,7 +4296,8 @@ void BoxIntegerInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
       Class::ZoneHandle(Isolate::Current()->object_store()->mint_class()),
       slow_path->entry_label(),
       Assembler::kFarJump,
-      out_reg);
+      out_reg,
+      kNoRegister);
   __ Bind(slow_path->exit_label());
   __ movsd(FieldAddress(out_reg, Mint::value_offset()), value);
   __ Bind(&done);