DBC: Fix more HTTP benchmark bailouts

runtime/vm/simulator_dbc.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.
 
 #include <setjmp.h>  // NOLINT
 #include <stdlib.h>
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_DBC)
 
@@ skipping 2937 matching lines @@
     RawSmi* index = RAW_CAST(Smi, FP[rB]);
     RawObject* value = FP[rC];
     ASSERT(SimulatorHelpers::CheckIndex(index, array->ptr()->length_));
     array->StorePointer(array->ptr()->data() + Smi::Value(index), value);
     DISPATCH();
   }
 
   {
     BYTECODE(StoreIndexedUint8, A_B_C);
     uint8_t* data = SimulatorHelpers::GetTypedData(FP[rA], FP[rB], 0);
-    *data = static_cast<uint8_t>(Smi::Value(RAW_CAST(Smi, FP[rC])));
+    *data = Smi::Value(RAW_CAST(Smi, FP[rC]));
     DISPATCH();
   }
 
   {
     BYTECODE(StoreIndexedExternalUint8, A_B_C);
     uint8_t* array = reinterpret_cast<uint8_t*>(FP[rA]);
     RawSmi* index = RAW_CAST(Smi, FP[rB]);
     RawSmi* value = RAW_CAST(Smi, FP[rC]);
-    array[Smi::Value(index)] = static_cast<uint8_t>(Smi::Value(value));
+    array[Smi::Value(index)] = Smi::Value(value);
     DISPATCH();
   }
 
+  {
+    BYTECODE(StoreIndexedOneByteString, A_B_C);
+    RawOneByteString* array = RAW_CAST(OneByteString, FP[rA]);
+    RawSmi* index = RAW_CAST(Smi, FP[rB]);
+    RawSmi* value = RAW_CAST(Smi, FP[rC]);
+    ASSERT(SimulatorHelpers::CheckIndex(index, array->ptr()->length_));
+    array->ptr()->data()[Smi::Value(index)] = Smi::Value(value);
+    DISPATCH();
+  }
+
   {
     BYTECODE(StoreIndexedUint32, A_B_C);
     uint8_t* data = SimulatorHelpers::GetTypedData(FP[rA], FP[rB], 2);
     const uintptr_t value = reinterpret_cast<uintptr_t>(FP[rC]);
     *reinterpret_cast<uint32_t*>(data) = static_cast<uint32_t>(value);
     DISPATCH();
   }
 
   {
     BYTECODE(LoadIndexed, A_B_C);
-    RawArray* array = RAW_CAST(Array, FP[rB]);
+    RawObject* obj = FP[rB];
+    ASSERT(obj->IsArray() || obj->IsImmutableArray());
+    RawArray* array = reinterpret_cast<RawArray*>(obj);
     RawSmi* index = RAW_CAST(Smi, FP[rC]);
     ASSERT(SimulatorHelpers::CheckIndex(index, array->ptr()->length_));
     FP[rA] = array->ptr()->data()[Smi::Value(index)];
     DISPATCH();
   }
 
   {
     BYTECODE(LoadIndexedUint8, A_B_C);
     uint8_t* data = SimulatorHelpers::GetTypedData(FP[rB], FP[rC], 0);
     FP[rA] = Smi::New(*data);
@@ skipping 234 matching lines @@
   pc_ = pc;
   special_[kExceptionSpecialIndex] = raw_exception;
   special_[kStacktraceSpecialIndex] = raw_stacktrace;
   buf->Longjmp();
   UNREACHABLE();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_DBC