Distinguish slow from fast sloppy arguments

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 2584fc45a22a3dd50cc57711448bbc11b1efe24f..ed997a054f43092b1343151c1bb3716c1959b7b8 100644
--- a/src/mips64/lithium-codegen-mips64.cc
+++ b/src/mips64/lithium-codegen-mips64.cc
@@ -3277,7 +3277,8 @@ void LCodeGen::DoLoadKeyedExternalArray(LLoadKeyed* instr) {
       case FAST_HOLEY_ELEMENTS:
       case FAST_HOLEY_SMI_ELEMENTS:
       case DICTIONARY_ELEMENTS:
-      case SLOPPY_ARGUMENTS_ELEMENTS:
+      case FAST_SLOPPY_ARGUMENTS_ELEMENTS:
+      case SLOW_SLOPPY_ARGUMENTS_ELEMENTS:
         UNREACHABLE();
         break;
     }
@@ -4484,7 +4485,8 @@ void LCodeGen::DoStoreKeyedExternalArray(LStoreKeyed* instr) {
       case FAST_HOLEY_ELEMENTS:
       case FAST_HOLEY_SMI_ELEMENTS:
       case DICTIONARY_ELEMENTS:
-      case SLOPPY_ARGUMENTS_ELEMENTS:
+      case FAST_SLOPPY_ARGUMENTS_ELEMENTS:
+      case SLOW_SLOPPY_ARGUMENTS_ELEMENTS:
         UNREACHABLE();
         break;
     }