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

src/a64/lithium-codegen-a64.cc

Index: src/a64/lithium-codegen-a64.cc
diff --git a/src/a64/lithium-codegen-a64.cc b/src/a64/lithium-codegen-a64.cc
index c983ac83926ac8f548571fd0c0a3c43d4b99deb0..e1264dcc5cde90252892b2479c18278b0adab43a 100644
--- a/src/a64/lithium-codegen-a64.cc
+++ b/src/a64/lithium-codegen-a64.cc
@@ -671,11 +671,11 @@ bool LCodeGen::GeneratePrologue() {
 
     // TODO(all): Add support for stop_t FLAG in DEBUG mode.
 
-    // Classic mode functions and builtins need to replace the receiver with the
+    // Sloppy mode functions and builtins need to replace the receiver with the
     // 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() * kXRegSizeInBytes;
@@ -3429,7 +3429,7 @@ void LCodeGen::DoLoadKeyedExternal(LLoadKeyedExternal* instr) {
       case FAST_ELEMENTS:
       case FAST_SMI_ELEMENTS:
       case DICTIONARY_ELEMENTS:
-      case NON_STRICT_ARGUMENTS_ELEMENTS:
+      case SLOPPY_ARGUMENTS_ELEMENTS:
         UNREACHABLE();
         break;
     }
@@ -4940,7 +4940,7 @@ void LCodeGen::DoStoreKeyedExternal(LStoreKeyedExternal* instr) {
       case FAST_HOLEY_ELEMENTS:
       case FAST_HOLEY_SMI_ELEMENTS:
       case DICTIONARY_ELEMENTS:
-      case NON_STRICT_ARGUMENTS_ELEMENTS:
+      case SLOPPY_ARGUMENTS_ELEMENTS:
         UNREACHABLE();
         break;
     }