[Interpreter] Add support for JS runtime 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/code-factory.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/node.h"
 #include "src/interface-descriptors.h"
@@ skipping 299 matching lines @@
         case interpreter::OperandType::kCount8:
           EXPECT_THAT(m.BytecodeOperandCount(i), m.IsBytecodeOperand(offset));
           break;
         case interpreter::OperandType::kIdx8:
           EXPECT_THAT(m.BytecodeOperandIdx(i), m.IsBytecodeOperand(offset));
           break;
         case interpreter::OperandType::kImm8:
           EXPECT_THAT(m.BytecodeOperandImm(i),
                       m.IsBytecodeOperandSignExtended(offset));
           break;
+        case interpreter::OperandType::kMaybeReg8:
         case interpreter::OperandType::kReg8:
           EXPECT_THAT(m.BytecodeOperandReg(i),
                       m.IsBytecodeOperandSignExtended(offset));
           break;
         case interpreter::OperandType::kIdx16:
           EXPECT_THAT(m.BytecodeOperandIdx(i),
                       m.IsBytecodeOperandShort(offset));
           break;
         case interpreter::OperandType::kNone:
           UNREACHABLE();
@@ skipping 296 matching lines @@
         feedback_vector,
         m.IsLoad(kMachAnyTagged, load_shared_function_info_matcher,
                  IsIntPtrConstant(SharedFunctionInfo::kFeedbackVectorOffset -
                                   kHeapObjectTag)));
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8