Revert of [turbofan] Add language mode to JSCallFunction operator.

src/compiler/js-operator.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/js-operator.h"
 
 #include <limits>
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
-std::ostream& operator<<(std::ostream& os, CallFunctionParameters const& p) {
-  return os << p.arity() << ", " << p.flags() << ", " << p.language_mode();
+bool operator==(CallFunctionParameters const& lhs,
+                CallFunctionParameters const& rhs) {
+  return lhs.arity() == rhs.arity() && lhs.flags() == rhs.flags();
 }
 
 
+bool operator!=(CallFunctionParameters const& lhs,
+                CallFunctionParameters const& rhs) {
+  return !(lhs == rhs);
+}
+
+
+size_t hash_value(CallFunctionParameters const& p) {
+  return base::hash_combine(p.arity(), p.flags());
+}
+
+
+std::ostream& operator<<(std::ostream& os, CallFunctionParameters const& p) {
+  return os << p.arity() << ", " << p.flags();
+}
+
+
 const CallFunctionParameters& CallFunctionParametersOf(const Operator* op) {
   DCHECK_EQ(IrOpcode::kJSCallFunction, op->opcode());
   return OpParameter<CallFunctionParameters>(op);
 }
 
 
 bool operator==(CallRuntimeParameters const& lhs,
                 CallRuntimeParameters const& rhs) {
   return lhs.id() == rhs.id() && lhs.arity() == rhs.arity();
 }
@@ skipping 298 matching lines @@
         break; /* %*!%^$#@ */                                           \
     }                                                                   \
     UNREACHABLE();                                                      \
     return nullptr;                                                     \
   }
 CACHED_OP_LIST_WITH_LANGUAGE_MODE(CACHED_WITH_LANGUAGE_MODE)
 #undef CACHED_WITH_LANGUAGE_MODE
 
 
 const Operator* JSOperatorBuilder::CallFunction(size_t arity,
-                                                CallFunctionFlags flags,
-                                                LanguageMode language_mode) {
-  CallFunctionParameters parameters(arity, flags, language_mode);
+                                                CallFunctionFlags flags) {
+  CallFunctionParameters parameters(arity, flags);
   return new (zone()) Operator1<CallFunctionParameters>(   // --
       IrOpcode::kJSCallFunction, Operator::kNoProperties,  // opcode
       "JSCallFunction",                                    // name
       parameters.arity(), 1, 1, 1, 1, 2,                   // inputs/outputs
       parameters);                                         // parameter
 }
 
 
 const Operator* JSOperatorBuilder::CallRuntime(Runtime::FunctionId id,
                                                size_t arity) {
@@ skipping 101 matching lines @@
   return new (zone()) Operator1<Unique<String>>(                 // --
       IrOpcode::kJSCreateCatchContext, Operator::kNoProperties,  // opcode
       "JSCreateCatchContext",                                    // name
       2, 1, 1, 1, 1, 2,                                          // counts
       name);                                                     // parameter
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8