[parser] Skipping inner funcs: make basic variable declarations work.

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 1885 matching lines @@
     } else if (var != kDummyPreParserVariable &&
                var != kDummyPreParserLexicalVariable) {
       if (info != nullptr) {
         // In this case we need to leave scopes in a way that they can be
         // allocated. If we resolved variables from lazy parsed scopes, we need
         // to context allocate the var.
         ResolveTo(info, proxy, var);
         if (!var->is_dynamic() && lookup != this) var->ForceContextAllocation();
       } else {
         var->set_is_used();
+        if (proxy->is_assigned()) {
+          var->set_maybe_assigned();
+        }
       }
     }
   }
 
   // Clear unresolved_ as it's in an inconsistent state.
   unresolved_ = nullptr;
 
   for (Scope* scope = inner_scope_; scope != nullptr; scope = scope->sibling_) {
     stack = scope->FetchFreeVariables(max_outer_scope, info, stack);
   }
@@ skipping 282 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