Mode clean-up pt 1: rename classic/non-strict mode to sloppy mode

src/mips/lithium-codegen-mips.cc

Index: src/mips/lithium-codegen-mips.cc
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index 7f9310a7c1c16014cb65004be721c7df8b4f29a2..ebbb62cf848eba1177bd5ea4357a68c977174355 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -150,7 +150,7 @@ bool LCodeGen::GeneratePrologue() {
     // global proxy when called as functions (without an explicit receiver
     // object).
     if (info_->this_has_uses() &&
-        info_->is_classic_mode() &&
+        info_->is_sloppy_mode() &&
         !info_->is_native()) {
       Label ok;
       int receiver_offset = info_->scope()->num_parameters() * kPointerSize;
@@ -3083,7 +3083,7 @@ void LCodeGen::DoLoadKeyedExternalArray(LLoadKeyed* instr) {
       case FAST_HOLEY_ELEMENTS:
       case FAST_HOLEY_SMI_ELEMENTS:
       case DICTIONARY_ELEMENTS:
-      case NON_STRICT_ARGUMENTS_ELEMENTS:
+      case SLOPPY_ARGUMENTS_ELEMENTS:
         UNREACHABLE();
         break;
     }
@@ -4190,7 +4190,7 @@ void LCodeGen::DoStoreKeyedExternalArray(LStoreKeyed* instr) {
       case FAST_HOLEY_ELEMENTS:
       case FAST_HOLEY_SMI_ELEMENTS:
       case DICTIONARY_ELEMENTS:
-      case NON_STRICT_ARGUMENTS_ELEMENTS:
+      case SLOPPY_ARGUMENTS_ELEMENTS:
         UNREACHABLE();
         break;
     }