Reland: [modules] Properly initialize declared variables.

src/objects.h

 // 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.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 #include <memory>
 
@@ skipping 4524 matching lines @@
   class HasNewTargetField
       : public BitField<bool, ReceiverVariableField::kNext, 1> {};
   class FunctionVariableField
       : public BitField<VariableAllocationInfo, HasNewTargetField::kNext, 2> {};
   class AsmModuleField
       : public BitField<bool, FunctionVariableField::kNext, 1> {};
   class AsmFunctionField : public BitField<bool, AsmModuleField::kNext, 1> {};
   class HasSimpleParametersField
       : public BitField<bool, AsmFunctionField::kNext, 1> {};
   class FunctionKindField
-      : public BitField<FunctionKind, HasSimpleParametersField::kNext, 9> {};
+      : public BitField<FunctionKind, HasSimpleParametersField::kNext, 10> {};
   class HasOuterScopeInfoField
       : public BitField<bool, FunctionKindField::kNext, 1> {};
   class IsDebugEvaluateScopeField
       : public BitField<bool, HasOuterScopeInfoField::kNext, 1> {};
 
   // Properties of variables.
   class VariableModeField : public BitField<VariableMode, 0, 3> {};
   class InitFlagField : public BitField<InitializationFlag, 3, 1> {};
   class MaybeAssignedFlagField : public BitField<MaybeAssignedFlag, 4, 1> {};
 
@@ skipping 3144 matching lines @@
     kIsArrow = kFunctionKind,
     kIsGenerator,
     kIsConciseMethod,
     kIsDefaultConstructor,
     kIsSubclassConstructor,
     kIsBaseConstructor,
     kIsGetterFunction,
     kIsSetterFunction,
     // byte 3
     kIsAsyncFunction,
+    kIsModule,
     kDeserialized,
     kIsDeclaration,
     kIsAsmWasmBroken,
     kRequiresClassFieldInit,
     kIsClassFieldInitializer,
     kCompilerHintsCount,  // Pseudo entry
   };
   // kFunctionKind has to be byte-aligned
   STATIC_ASSERT((kFunctionKind % kBitsPerByte) == 0);
 // Make sure that FunctionKind and byte 2 are in sync:
 #define ASSERT_FUNCTION_KIND_ORDER(functionKind, compilerFunctionKind) \
   STATIC_ASSERT(FunctionKind::functionKind ==                          \
                 1 << (compilerFunctionKind - kFunctionKind))
   ASSERT_FUNCTION_KIND_ORDER(kArrowFunction, kIsArrow);
   ASSERT_FUNCTION_KIND_ORDER(kGeneratorFunction, kIsGenerator);
   ASSERT_FUNCTION_KIND_ORDER(kConciseMethod, kIsConciseMethod);
   ASSERT_FUNCTION_KIND_ORDER(kDefaultConstructor, kIsDefaultConstructor);
   ASSERT_FUNCTION_KIND_ORDER(kSubclassConstructor, kIsSubclassConstructor);
   ASSERT_FUNCTION_KIND_ORDER(kBaseConstructor, kIsBaseConstructor);
   ASSERT_FUNCTION_KIND_ORDER(kGetterFunction, kIsGetterFunction);
   ASSERT_FUNCTION_KIND_ORDER(kSetterFunction, kIsSetterFunction);
+  ASSERT_FUNCTION_KIND_ORDER(kAsyncFunction, kIsAsyncFunction);
+  ASSERT_FUNCTION_KIND_ORDER(kModule, kIsModule);
 #undef ASSERT_FUNCTION_KIND_ORDER
 
-  class FunctionKindBits : public BitField<FunctionKind, kIsArrow, 9> {};
+  class FunctionKindBits : public BitField<FunctionKind, kIsArrow, 10> {};
 
   class DeoptCountBits : public BitField<int, 0, 4> {};
   class OptReenableTriesBits : public BitField<int, 4, 18> {};
   class ICAgeBits : public BitField<int, 22, 8> {};
 
   class OptCountBits : public BitField<int, 0, 22> {};
   class DisabledOptimizationReasonBits : public BitField<int, 22, 8> {};
 
  private:
 #if V8_HOST_ARCH_32_BIT
@@ skipping 3682 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_