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

src/compiler/code-assembler.cc

Index: src/compiler/code-assembler.cc
diff --git a/src/compiler/code-assembler.cc b/src/compiler/code-assembler.cc
index 8f8ef1d117883aeb77e52ce1282087a0920b965b..7f8e2ffad0e5f4f1a97ed96db9e0adf542aab44f 100644
--- a/src/compiler/code-assembler.cc
+++ b/src/compiler/code-assembler.cc
@@ -432,6 +432,14 @@ Node* CodeAssembler::TailCallRuntime(Runtime::FunctionId function_id,
                                           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());