[WIP] Start adding JSCallWithVarargs

src/compiler/js-operator.cc

Index: src/compiler/js-operator.cc
diff --git a/src/compiler/js-operator.cc b/src/compiler/js-operator.cc
index f48373f08520e1412b6805d2fa8109c950e96752..bebc1cfe3a0903f90867729e60e2e8277f9dece3 100644
--- a/src/compiler/js-operator.cc
+++ b/src/compiler/js-operator.cc
@@ -157,6 +157,17 @@ const CallParameters& CallParametersOf(const Operator* op) {
 }
 
 std::ostream& operator<<(std::ostream& os,
+                         CallVarargsParameters const& p) {
+  return os << p.arity();
+}
+
+CallVarargsParameters const& CallVarargsParametersOf(
+    Operator const* op) {
+  DCHECK_EQ(IrOpcode::kJSCallVarargs, op->opcode());
+  return OpParameter<CallVarargsParameters>(op);
+}
+
+std::ostream& operator<<(std::ostream& os,
                          CallForwardVarargsParameters const& p) {
   return os << p.arity() << ", " << p.start_index() << ", "
             << p.tail_call_mode();
@@ -804,16 +815,6 @@ const Operator* JSOperatorBuilder::ToBoolean(ToBooleanHints hints) {
       hints);                                     // parameter
 }
 
-const Operator* JSOperatorBuilder::CallForwardVarargs(
-    size_t arity, uint32_t start_index, TailCallMode tail_call_mode) {
-  CallForwardVarargsParameters parameters(arity, start_index, tail_call_mode);
-  return new (zone()) Operator1<CallForwardVarargsParameters>(   // --
-      IrOpcode::kJSCallForwardVarargs, Operator::kNoProperties,  // opcode
-      "JSCallForwardVarargs",                                    // name
-      parameters.arity(), 1, 1, 1, 1, 2,                         // counts
-      parameters);                                               // parameter
-}
-
 const Operator* JSOperatorBuilder::Call(size_t arity, CallFrequency frequency,
                                         VectorSlotPair const& feedback,
                                         ConvertReceiverMode convert_mode,
@@ -827,6 +828,26 @@ const Operator* JSOperatorBuilder::Call(size_t arity, CallFrequency frequency,
       parameters);                                 // parameter
 }
 
+const Operator* JSOperatorBuilder::CallForwardVarargs(
+    size_t arity, uint32_t start_index, TailCallMode tail_call_mode) {
+  CallForwardVarargsParameters parameters(arity, start_index, tail_call_mode);
+  return new (zone()) Operator1<CallForwardVarargsParameters>(   // --
+      IrOpcode::kJSCallForwardVarargs, Operator::kNoProperties,  // opcode
+      "JSCallForwardVarargs",                                    // name
+      parameters.arity(), 1, 1, 1, 1, 2,                         // counts
+      parameters);                                               // parameter
+}
+
+const Operator* JSOperatorBuilder::CallVarargs(
+    size_t arity) {
+  CallVarargsParameters parameters(arity);
+  return new (zone()) Operator1<CallVarargsParameters>(   // --
+      IrOpcode::kJSCallVarargs, Operator::kNoProperties,  // opcode
+      "JSCallVarargs",                                    // name
+      parameters.arity() + 2, 1, 1, 1, 1, 2,              // counts
+      parameters);                                        // parameter
+}
+
 const Operator* JSOperatorBuilder::CallWithArrayLike(CallFrequency frequency) {
   return new (zone()) Operator1<CallFrequency>(                 // --
       IrOpcode::kJSCallWithArrayLike, Operator::kNoProperties,  // opcode