Revert of [modules] Add partial support for debug-scopes.

src/ast/scopeinfo.cc

Index: src/ast/scopeinfo.cc
diff --git a/src/ast/scopeinfo.cc b/src/ast/scopeinfo.cc
index e4d304116547bcc53e224923a721745ef08d5158..5d0212c750b5916c1d95de1da83f9692a9f47643 100644
--- a/src/ast/scopeinfo.cc
+++ b/src/ast/scopeinfo.cc
@@ -647,8 +647,12 @@
   int entry = ModuleVariablesIndex();
   for (int i = 0; i < module_vars_count; ++i) {
     if (*name == get(entry + kModuleVariableNameOffset)) {
-      int index;
-      ModuleVariable(i, nullptr, &index, mode, init_flag, maybe_assigned_flag);
+      int index = Smi::cast(get(entry + kModuleVariableIndexOffset))->value();
+      int properties =
+          Smi::cast(get(entry + kModuleVariablePropertiesOffset))->value();
+      *mode = VariableModeField::decode(properties);
+      *init_flag = InitFlagField::decode(properties);
+      *maybe_assigned_flag = MaybeAssignedFlagField::decode(properties);
       return index;
     }
     entry += kModuleVariableEntryLength;
@@ -790,34 +794,6 @@
 
 int ScopeInfo::ModuleVariablesIndex() { return ModuleVariableCountIndex() + 1; }
 
-void ScopeInfo::ModuleVariable(int i, String** name, int* index,
-                               VariableMode* mode,
-                               InitializationFlag* init_flag,
-                               MaybeAssignedFlag* maybe_assigned_flag) {
-  DCHECK_LE(0, i);
-  DCHECK_LT(i, Smi::cast(get(ModuleVariableCountIndex()))->value());
-
-  int entry = ModuleVariablesIndex() + i * kModuleVariableEntryLength;
-  int properties =
-      Smi::cast(get(entry + kModuleVariablePropertiesOffset))->value();
-
-  if (name != nullptr) {
-    *name = String::cast(get(entry + kModuleVariableNameOffset));
-  }
-  if (index != nullptr) {
-    *index = Smi::cast(get(entry + kModuleVariableIndexOffset))->value();
-  }
-  if (mode != nullptr) {
-    *mode = VariableModeField::decode(properties);
-  }
-  if (init_flag != nullptr) {
-    *init_flag = InitFlagField::decode(properties);
-  }
-  if (maybe_assigned_flag != nullptr) {
-    *maybe_assigned_flag = MaybeAssignedFlagField::decode(properties);
-  }
-}
-
 #ifdef DEBUG
 
 static void PrintList(const char* list_name,
@@ -928,20 +904,5 @@
   return result;
 }
 
-Handle<ModuleInfoEntry> ModuleInfo::LookupRegularImport(
-    Handle<ModuleInfo> info, Handle<String> local_name) {
-  Isolate* isolate = info->GetIsolate();
-  Handle<FixedArray> regular_imports(info->regular_imports(), isolate);
-  for (int i = 0, n = regular_imports->length(); i < n; ++i) {
-    Handle<ModuleInfoEntry> entry(
-        ModuleInfoEntry::cast(regular_imports->get(i)), isolate);
-    if (String::cast(entry->local_name())->Equals(*local_name)) {
-      return entry;
-    }
-  }
-  UNREACHABLE();
-  return Handle<ModuleInfoEntry>();
-}
-
 }  // namespace internal
 }  // namespace v8