[Interpreter] Add support for JS calls.

test/unittests/compiler/interpreter-assembler-unittest.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 "test/unittests/compiler/interpreter-assembler-unittest.h"
 
 #include "src/compiler/graph.h"
 #include "src/compiler/node.h"
 #include "src/interface-descriptors.h"
 #include "src/isolate.h"
@@ skipping 167 matching lines @@
   }
 }
 
 
 TARGET_TEST_F(InterpreterAssemblerTest, BytecodeOperand) {
   TRACED_FOREACH(interpreter::Bytecode, bytecode, kBytecodes) {
     InterpreterAssemblerForTest m(this, bytecode);
     int number_of_operands = interpreter::Bytecodes::NumberOfOperands(bytecode);
     for (int i = 0; i < number_of_operands; i++) {
       switch (interpreter::Bytecodes::GetOperandType(bytecode, i)) {
+        case interpreter::OperandType::kCount:
+          EXPECT_THAT(m.BytecodeOperandCount(i), m.IsBytecodeOperand(i));
+          break;
         case interpreter::OperandType::kIdx:
           EXPECT_THAT(m.BytecodeOperandIdx(i), m.IsBytecodeOperand(i));
           break;
         case interpreter::OperandType::kImm8:
           EXPECT_THAT(m.BytecodeOperandImm8(i),
                       m.IsBytecodeOperandSignExtended(i));
           break;
         case interpreter::OperandType::kReg:
           EXPECT_THAT(m.BytecodeOperandReg(i),
                       m.IsBytecodeOperandSignExtended(i));
@@ skipping 196 matching lines @@
         feedback_vector,
         m.IsLoad(kMachAnyTagged, load_shared_function_info_matcher,
                  IsIntPtrConstant(SharedFunctionInfo::kFeedbackVectorOffset -
                                   kHeapObjectTag)));
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8