Allow loading holes from holey smi arrays

src/mips64/lithium-codegen-mips64.cc

Index: src/mips64/lithium-codegen-mips64.cc
diff --git a/src/mips64/lithium-codegen-mips64.cc b/src/mips64/lithium-codegen-mips64.cc
index 223370f7113b74c49e89e64573456c6ad3bbd239..0373312403548a87ec72225946b2d6489dce4e93 100644
--- a/src/mips64/lithium-codegen-mips64.cc
+++ b/src/mips64/lithium-codegen-mips64.cc
@@ -3335,7 +3335,8 @@ void LCodeGen::DoLoadKeyedFixedArray(LLoadKeyed* instr) {
       DeoptimizeIf(eq, instr, Deoptimizer::kHole, result, Operand(scratch));
     }
   } else if (instr->hydrogen()->hole_mode() == CONVERT_HOLE_TO_UNDEFINED) {
-    DCHECK(instr->hydrogen()->elements_kind() == FAST_HOLEY_ELEMENTS);
+    DCHECK(instr->hydrogen()->elements_kind() == FAST_HOLEY_SMI_ELEMENTS ||
+           instr->hydrogen()->elements_kind() == FAST_HOLEY_ELEMENTS);
     Label done;
     __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex);
     __ Branch(&done, ne, result, Operand(scratch));