Fix lazy deoptimization in the presence of exceptions

runtime/vm/simulator_mips.cc

Index: runtime/vm/simulator_mips.cc
diff --git a/runtime/vm/simulator_mips.cc b/runtime/vm/simulator_mips.cc
index eb03c4997dc8a80874d518c544c5dc6101d10d3f..f42b3fa88066541589a77e12bb5ed3bbdc25f1f3 100644
--- a/runtime/vm/simulator_mips.cc
+++ b/runtime/vm/simulator_mips.cc
@@ -2530,6 +2530,13 @@ 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();
 }