[turbofan] Add support for tail-calling a runtime function with 6 arguments.

src/compiler/code-assembler.cc

 // Copyright 2015 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/code-assembler.h"
 
 #include <ostream>
 
 #include "src/code-factory.h"
 #include "src/compiler/graph.h"
@@ skipping 414 matching lines @@
                                           context);
 }
 
 Node* CodeAssembler::TailCallRuntime(Runtime::FunctionId function_id,
                                      Node* context, Node* arg1, Node* arg2,
                                      Node* arg3, Node* arg4, Node* arg5) {
   return raw_assembler_->TailCallRuntime5(function_id, arg1, arg2, arg3, arg4,
                                           arg5, context);
 }
 
+Node* CodeAssembler::TailCallRuntime(Runtime::FunctionId function_id,
+                                     Node* context, Node* arg1, Node* arg2,
+                                     Node* arg3, Node* arg4, Node* arg5,
+                                     Node* arg6) {
+  return raw_assembler_->TailCallRuntime6(function_id, arg1, arg2, arg3, arg4,
+                                          arg5, arg6, context);
+}
+
 Node* CodeAssembler::CallStub(Callable const& callable, Node* context,
                               Node* arg1, size_t result_size) {
   Node* target = HeapConstant(callable.code());
   return CallStub(callable.descriptor(), target, context, arg1, result_size);
 }
 
 Node* CodeAssembler::CallStub(Callable const& callable, Node* context,
                               Node* arg1, Node* arg2, size_t result_size) {
   Node* target = HeapConstant(callable.code());
   return CallStub(callable.descriptor(), target, context, arg1, arg2,
@@ skipping 634 matching lines @@
       }
     }
   }
 
   bound_ = true;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8