[turbofan] [deoptimizer] Support inlining of ES6 tail calls.

test/mjsunit/es6/tail-call-megatest.js

 // Copyright 2016 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.
 
-// Flags: --allow-natives-syntax --harmony-tailcalls --no-turbo-inlining
+// Flags: --allow-natives-syntax --harmony-tailcalls
 // TODO(v8:4698), TODO(ishell): support these cases.
-// Flags: --nostress-opt
+// Flags: --turbo --nostress-opt
 
 
 Error.prepareStackTrace = (error,stack) => {
   error.strace = stack;
   return error.message + "\n    at " + stack.join("\n    at ");
 }
 
 
 function checkStackTrace(expected) {
   var e = new Error();
@@ skipping 281 matching lines @@
       `  %OptimizeFunctionOnNextCall(f);`,
       `  %OptimizeFunctionOnNextCall(g);`,
       `  test();`,
       `})();`,
       ``,
     ];
     var source = lines.join("\n");
     return source;
   }
 
-  // TODO(v8:4698), TODO(ishell): support all commented cases.
   var f_args_variants = ["", "1", "1, 2"];
   var g_args_variants = ["", "10", "10, 20"];
-  var f_inlinable_variants = [/*true,*/ false];
-  var g_inlinable_variants = [/*true,*/ false];
+  var f_inlinable_variants = [true, false];
+  var g_inlinable_variants = [true, false];
   var f_variants = [
       f_cfg_sloppy,
       f_cfg_strict,
       f_cfg_bound,
       f_cfg_proxy,
       f_cfg_possibly_eval,
   ];
   var g_variants = [
       g_cfg_normal,
       g_cfg_function_call,
@@ skipping 27 matching lines @@
               });
             });
           });
         });
       });
     });
   });
 }
 
 run_tests();