Revert of [Interpreter] Rename GetCountOperand to GetRegisterCountOperand.

src/compiler/bytecode-graph-builder.cc

Index: src/compiler/bytecode-graph-builder.cc
diff --git a/src/compiler/bytecode-graph-builder.cc b/src/compiler/bytecode-graph-builder.cc
index 9df203fc2517b7d26fcbc837a877f85277c2d5cb..1bc2141a2078a535d1bcdb9c3a398b624e762140 100644
--- a/src/compiler/bytecode-graph-builder.cc
+++ b/src/compiler/bytecode-graph-builder.cc
@@ -1069,7 +1069,7 @@
   Node* callee =
       environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
   interpreter::Register receiver = bytecode_iterator().GetRegisterOperand(1);
-  size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2);
+  size_t arg_count = bytecode_iterator().GetCountOperand(2);
   VectorSlotPair feedback =
       CreateVectorSlotPair(bytecode_iterator().GetIndexOperand(3));
 
@@ -1089,7 +1089,7 @@
   Node* callee =
       BuildLoadNativeContextField(bytecode_iterator().GetIndexOperand(0));
   interpreter::Register receiver = bytecode_iterator().GetRegisterOperand(1);
-  size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2);
+  size_t arg_count = bytecode_iterator().GetCountOperand(2);
 
   // Create node to perform the JS runtime call.
   const Operator* call =
@@ -1120,7 +1120,7 @@
   Runtime::FunctionId functionId =
       static_cast<Runtime::FunctionId>(bytecode_iterator().GetIndexOperand(0));
   interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1);
-  size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2);
+  size_t arg_count = bytecode_iterator().GetCountOperand(2);
 
   // Create node to perform the runtime call.
   const Operator* call = javascript()->CallRuntime(functionId, arg_count);
@@ -1137,7 +1137,7 @@
   Runtime::FunctionId functionId =
       static_cast<Runtime::FunctionId>(bytecode_iterator().GetIndexOperand(0));
   interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1);
-  size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2);
+  size_t arg_count = bytecode_iterator().GetCountOperand(2);
   interpreter::Register first_return =
       bytecode_iterator().GetRegisterOperand(3);
 
@@ -1176,7 +1176,7 @@
   FrameStateBeforeAndAfter states(this);
   interpreter::Register callee = bytecode_iterator().GetRegisterOperand(0);
   interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1);
-  size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2);
+  size_t arg_count = bytecode_iterator().GetCountOperand(2);
 
   // TODO(turbofan): Pass the feedback here.
   const Operator* call = javascript()->CallConstruct(