[Interpreter] Remove InterpreterExitTrampoline and replace with returning to the entry trampoline.

test/unittests/interpreter/interpreter-assembler-unittest.cc

Index: test/unittests/interpreter/interpreter-assembler-unittest.cc
diff --git a/test/unittests/interpreter/interpreter-assembler-unittest.cc b/test/unittests/interpreter/interpreter-assembler-unittest.cc
index ebdb16c4b563dd758296d95c82051ecab1cd3bd3..25b306e35924e8bb8d6593698bd791ff5ecb66ce 100644
--- a/test/unittests/interpreter/interpreter-assembler-unittest.cc
+++ b/test/unittests/interpreter/interpreter-assembler-unittest.cc
@@ -382,32 +382,6 @@ TARGET_TEST_F(InterpreterAssemblerTest, Jump) {
   }
 }
 
-TARGET_TEST_F(InterpreterAssemblerTest, InterpreterReturn) {
-  // If debug code is enabled we emit extra code in InterpreterReturn.
-  if (FLAG_debug_code) return;
-
-  TRACED_FOREACH(interpreter::Bytecode, bytecode, kBytecodes) {
-    InterpreterAssemblerForTest m(this, bytecode);
-    Node* tail_call_node = m.InterpreterReturn();
-
-    Handle<HeapObject> exit_trampoline =
-        isolate()->builtins()->InterpreterExitTrampoline();
-    Matcher<Node*> exit_trampoline_entry_matcher =
-        IsIntPtrAdd(IsHeapConstant(exit_trampoline),
-                    IsIntPtrConstant(Code::kHeaderSize - kHeapObjectTag));
-    EXPECT_THAT(
-        tail_call_node,
-        IsTailCall(
-            _, exit_trampoline_entry_matcher,
-            IsParameter(InterpreterDispatchDescriptor::kAccumulatorParameter),
-            IsParameter(
-                InterpreterDispatchDescriptor::kBytecodeOffsetParameter),
-            _,
-            IsParameter(InterpreterDispatchDescriptor::kDispatchTableParameter),
-            _, _));
-  }
-}
-
 TARGET_TEST_F(InterpreterAssemblerTest, BytecodeOperand) {
   static const OperandScale kOperandScales[] = {
       OperandScale::kSingle, OperandScale::kDouble, OperandScale::kQuadruple};