Fix lazy deoptimization in the presence of exceptions

runtime/vm/simulator_arm.cc

Index: runtime/vm/simulator_arm.cc
diff --git a/runtime/vm/simulator_arm.cc b/runtime/vm/simulator_arm.cc
index 3077c8b6ad91be9acbe9deace500ae564550095a..9c3e3cf36a305ad121d795177541e26945b6c66d 100644
--- a/runtime/vm/simulator_arm.cc
+++ b/runtime/vm/simulator_arm.cc
@@ -3906,6 +3906,13 @@ void Simulator::Longjmp(uword pc,
   ASSERT(raw_exception != Object::null());
   set_register(kExceptionObjectReg, bit_cast<int32_t>(raw_exception));
   set_register(kStackTraceObjectReg, bit_cast<int32_t>(raw_stacktrace));
+  // Restore pool pointer.
+  int32_t code = *reinterpret_cast<int32_t*>(
+      fp + kPcMarkerSlotFromFp * kWordSize);
+  int32_t pp = *reinterpret_cast<int32_t*>(
+      code + Code::object_pool_offset() - kHeapObjectTag);
+  set_register(CODE_REG, code);
+  set_register(PP, pp);
   buf->Longjmp();
 }