Remove CONST_LEGACY VariableMode

src/asmjs/asm-typer.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/asmjs/asm-typer.h"
 
 #include <algorithm>
 #include <limits>
 #include <memory>
 #include <string>
@@ skipping 587 matching lines @@
   auto* use_asm_directive = iter.Next();
   if (use_asm_directive == nullptr) {
     FAIL(fun, "Missing \"use asm\".");
   }
   // Check for extra assignment inserted by the parser when in this form:
   // (function Module(a, b, c) {... })
   ExpressionStatement* estatement = use_asm_directive->AsExpressionStatement();
   if (estatement != nullptr) {
     Assignment* assignment = estatement->expression()->AsAssignment();
     if (assignment != nullptr && assignment->target()->IsVariableProxy() &&
-        assignment->target()->AsVariableProxy()->var()->mode() ==
-            CONST_LEGACY) {
+        assignment->target()
+            ->AsVariableProxy()
+            ->var()
+            ->is_sloppy_function_name()) {
       use_asm_directive = iter.Next();
     }
   }
   if (!IsUseAsmDirective(use_asm_directive)) {
     FAIL(fun, "Missing \"use asm\".");
   }
   source_layout.AddUseAsm(*use_asm_directive);
   ReturnStatement* module_return = nullptr;
 
   // *VIOLATION* The spec states that globals should be followed by function
@@ skipping 2143 matching lines @@
     return true;
   }
 
   *error_message = typer.error_message();
   return false;
 }
 
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8