MIPS: port Merge arguments branch to bleeding edge (second try).

src/mips/stub-cache-mips.cc

Index: src/mips/stub-cache-mips.cc
diff --git a/src/mips/stub-cache-mips.cc b/src/mips/stub-cache-mips.cc
index 2e946f98f10a955ee49cc3d3dbfe1b1b7c225263..3e5a0091cab636108a9625f79745e2f157fb79c0 100644
--- a/src/mips/stub-cache-mips.cc
+++ b/src/mips/stub-cache-mips.cc
@@ -3408,6 +3408,7 @@ static bool IsElementTypeSigned(JSObject::ElementsKind elements_kind) {
     case JSObject::FAST_ELEMENTS:
     case JSObject::FAST_DOUBLE_ELEMENTS:
     case JSObject::DICTIONARY_ELEMENTS:
+    case JSObject::NON_STRICT_ARGUMENTS_ELEMENTS:
       UNREACHABLE();
       return false;
   }
@@ -3502,6 +3503,7 @@ void KeyedLoadStubCompiler::GenerateLoadExternalArray(
     case JSObject::FAST_ELEMENTS:
     case JSObject::FAST_DOUBLE_ELEMENTS:
     case JSObject::DICTIONARY_ELEMENTS:
+    case JSObject::NON_STRICT_ARGUMENTS_ELEMENTS:
       UNREACHABLE();
       break;
   }
@@ -3861,6 +3863,7 @@ void KeyedStoreStubCompiler::GenerateStoreExternalArray(
     case JSObject::FAST_ELEMENTS:
     case JSObject::FAST_DOUBLE_ELEMENTS:
     case JSObject::DICTIONARY_ELEMENTS:
+    case JSObject::NON_STRICT_ARGUMENTS_ELEMENTS:
       UNREACHABLE();
       break;
   }
@@ -3926,6 +3929,7 @@ void KeyedStoreStubCompiler::GenerateStoreExternalArray(
           case JSObject::FAST_ELEMENTS:
           case JSObject::FAST_DOUBLE_ELEMENTS:
           case JSObject::DICTIONARY_ELEMENTS:
+          case JSObject::NON_STRICT_ARGUMENTS_ELEMENTS:
             UNREACHABLE();
             break;
         }
@@ -4095,6 +4099,7 @@ void KeyedStoreStubCompiler::GenerateStoreExternalArray(
           case JSObject::FAST_ELEMENTS:
           case JSObject::FAST_DOUBLE_ELEMENTS:
           case JSObject::DICTIONARY_ELEMENTS:
+          case JSObject::NON_STRICT_ARGUMENTS_ELEMENTS:
             UNREACHABLE();
             break;
         }