Remove CONST_LEGACY VariableMode

src/asmjs/asm-wasm-builder.cc

Index: src/asmjs/asm-wasm-builder.cc
diff --git a/src/asmjs/asm-wasm-builder.cc b/src/asmjs/asm-wasm-builder.cc
index dd17621d83c9df9efb30916145f2e1360b7c0efb..00e304bbcb76edd7b89d4408b720cd434c9b2161 100644
--- a/src/asmjs/asm-wasm-builder.cc
+++ b/src/asmjs/asm-wasm-builder.cc
@@ -833,7 +833,7 @@ class AsmWasmBuilderImpl final : public AstVisitor<AsmWasmBuilderImpl> {
       // Skip extra assignment inserted by the parser when in this form:
       // (function Module(a, b, c) {... })
       if (expr->target()->IsVariableProxy() &&
-          expr->target()->AsVariableProxy()->var()->mode() == CONST_LEGACY) {
+          expr->target()->AsVariableProxy()->var()->is_sloppy_function_name()) {
         return;
       }
       Property* prop = expr->value()->AsProperty();