Disable lazy parsing inside eval (see bug).

src/ast/scopes.cc

 // Copyright 2012 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/ast/scopes.h"
 
 #include <set>
 
 #include "src/accessors.h"
 #include "src/ast/ast.h"
@@ skipping 1161 matching lines @@
 
 bool Scope::AllowsLazyParsingWithoutUnresolvedVariables(
     const Scope* outer) const {
   // If none of the outer scopes need to decide whether to context allocate
   // specific variables, we can preparse inner functions without unresolved
   // variables. Otherwise we need to find unresolved variables to force context
   // allocation of the matching declarations. We can stop at the outer scope for
   // the parse, since context allocation of those variables is already
   // guaranteed to be correct.
   for (const Scope* s = this; s != outer; s = s->outer_scope_) {
-    // Eval forces context allocation on all outer scopes, so we don't need to
-    // look at those scopes. Sloppy eval makes all top-level variables dynamic,
-    // whereas strict-mode requires context allocation.
-    if (s->is_eval_scope()) return !is_strict(s->language_mode());
+    if (s->is_eval_scope()) return false;
     // Catch scopes force context allocation of all variables.
     if (s->is_catch_scope()) continue;
     // With scopes do not introduce variables that need allocation.
     if (s->is_with_scope()) continue;
     // If everything is guaranteed to be context allocated we can ignore the
     // scope.
     if (s->has_forced_context_allocation()) continue;
     // Only block scopes and function scopes should disallow preparsing.
     DCHECK(s->is_block_scope() || s->is_function_scope());
     return false;
@@ skipping 907 matching lines @@
   Variable* function =
       is_function_scope() ? AsDeclarationScope()->function_var() : nullptr;
   bool is_function_var_in_context =
       function != nullptr && function->IsContextSlot();
   return num_heap_slots() - Context::MIN_CONTEXT_SLOTS -
          (is_function_var_in_context ? 1 : 0);
 }
 
 }  // namespace internal
 }  // namespace v8