Support BottomType in the VM Kernel reader

runtime/vm/kernel_binary.cc

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 #if !defined(DART_PRECOMPILED_RUNTIME)
 
 #include "vm/kernel_binary.h"
 #include "platform/globals.h"
 #include "vm/flags.h"
 #include "vm/growable_array.h"
 #include "vm/kernel.h"
@@ skipping 1363 matching lines @@
 DartType* DartType::ReadFrom(Reader* reader) {
   TRACE_READ_OFFSET();
   Tag tag = reader->ReadTag();
   switch (tag) {
     case kInvalidType:
       return InvalidType::ReadFrom(reader);
     case kDynamicType:
       return DynamicType::ReadFrom(reader);
     case kVoidType:
       return VoidType::ReadFrom(reader);
+    case kBottomType:
+      return BottomType::ReadFrom(reader);
     case kInterfaceType:
       return InterfaceType::ReadFrom(reader);
     case kSimpleInterfaceType:
       return InterfaceType::ReadFrom(reader, true);
     case kFunctionType:
       return FunctionType::ReadFrom(reader);
     case kSimpleFunctionType:
       return FunctionType::ReadFrom(reader, true);
     case kTypeParameterType:
       return TypeParameterType::ReadFrom(reader);
@@ skipping 20 matching lines @@
   return new DynamicType();
 }
 
 
 VoidType* VoidType::ReadFrom(Reader* reader) {
   TRACE_READ_OFFSET();
   return new VoidType();
 }
 
 
+BottomType* BottomType::ReadFrom(Reader* reader) {
+  TRACE_READ_OFFSET();
+  return new BottomType();
+}
+
+
 InterfaceType* InterfaceType::ReadFrom(Reader* reader) {
   TRACE_READ_OFFSET();
   intptr_t klass_name = Reference::ReadClassFrom(reader);
   InterfaceType* type = new InterfaceType(klass_name);
   type->type_arguments().ReadFromStatic<DartType>(reader);
   return type;
 }
 
 
 InterfaceType* InterfaceType::ReadFrom(Reader* reader,
@@ skipping 146 matching lines @@
 
 kernel::Program* ReadPrecompiledKernelFromBuffer(const uint8_t* buffer,
                                                  intptr_t buffer_length) {
   kernel::Reader reader(buffer, buffer_length);
   return kernel::Program::ReadFrom(&reader);
 }
 
 
 }  // namespace dart
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)