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

src/interpreter/bytecodes.h

Index: src/interpreter/bytecodes.h
diff --git a/src/interpreter/bytecodes.h b/src/interpreter/bytecodes.h
index 83c09dbd2eabebcb29cabc2cb5d90902162a4b1c..2f91bf1b14c76b741136ee3363adb3a5de705899 100644
--- a/src/interpreter/bytecodes.h
+++ b/src/interpreter/bytecodes.h
@@ -239,7 +239,7 @@ namespace interpreter {
   /* Non-local flow control */                                                \
   V(Throw, AccumulatorUse::kRead)                                             \
   V(ReThrow, AccumulatorUse::kRead)                                           \
-  V(Return, AccumulatorUse::kNone)                                            \
+  V(Return, AccumulatorUse::kRead)                                            \
                                                                               \
   /* Generators */                                                            \
   V(SuspendGenerator, AccumulatorUse::kRead, OperandType::kReg)               \
@@ -509,6 +509,9 @@ class Bytecodes {
   // Returns the size of |operand|.
   static OperandSize SizeOfOperand(OperandType operand, OperandScale scale);
 
+  // Returns the number of values which |bytecode| returns.
+  static size_t ReturnCount(Bytecode bytecode);
+
   // Returns true if the bytecode is a conditional jump taking
   // an immediate byte operand (OperandType::kImm).
   static bool IsConditionalJumpImmediate(Bytecode bytecode);