Preparse inner functions.

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 1027 matching lines @@
 
   MaybeHandle<ScopeInfo> outer_scope;
   for (const Scope* s = outer_scope_; s != nullptr; s = s->outer_scope_) {
     if (s->scope_info_.is_null()) continue;
     outer_scope = s->scope_info_;
     break;
   }
   AllocateScopeInfosRecursively(info->isolate(), mode, outer_scope);
 }
 
-bool Scope::AllowsLazyParsing() const {
-  // If we are inside a block scope, we must parse eagerly to find out how
-  // to allocate variables on the block scope. At this point, declarations may
-  // not have yet been parsed.
+bool Scope::AllowsLazyParsingWithoutUnresolvedVariables() const {
+  // If we are inside a block scope, we must find unresolved variables in the
+  // inner scopes to find out how to allocate variables on the block scope. At
+  // this point, declarations may not have yet been parsed.
   for (const Scope* s = this; s != nullptr; s = s->outer_scope_) {
     if (s->is_block_scope()) return false;
+    // TODO(marja): Refactor parsing modes: also add s->is_function_scope()
+    // here.
   }
   return true;
 }
 
 bool DeclarationScope::AllowsLazyCompilation() const {
   return !force_eager_compilation_;
 }
 
 bool DeclarationScope::AllowsLazyCompilationWithoutContext() const {
   if (force_eager_compilation_) return false;
@@ skipping 747 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