[strong] Fix scoping related errors for methods.

src/parser.cc

Index: src/parser.cc
diff --git a/src/parser.cc b/src/parser.cc
index aa6ee8ccb6c67a3d210a39b18e97a31f9808ea32..49a08ce9c5a0687b90e0e121df1133cc0cb86a6c 100644
--- a/src/parser.cc
+++ b/src/parser.cc
@@ -1809,6 +1809,7 @@ Variable* Parser::Declare(Declaration* declaration, bool resolve, bool* ok) {
   if (declaration_scope->is_function_scope() ||
       declaration_scope->is_strict_eval_scope() ||
       declaration_scope->is_block_scope() ||
+      declaration_scope->is_class_scope() ||
       declaration_scope->is_module_scope() ||
       declaration_scope->is_script_scope()) {
     // Declare the variable in the declaration scope.
@@ -4093,8 +4094,8 @@ ClassLiteral* Parser::ParseClassLiteral(const AstRawString* name,
     return NULL;
   }
 
-  Scope* block_scope = NewScope(scope_, BLOCK_SCOPE);
-  BlockState block_state(&scope_, block_scope);
+  Scope* class_scope = NewScope(scope_, CLASS_SCOPE);
+  BlockState block_state(&scope_, class_scope);
   scope_->SetLanguageMode(
       static_cast<LanguageMode>(scope_->language_mode() | STRICT_BIT));
   scope_->SetScopeName(name);
@@ -4103,16 +4104,16 @@ ClassLiteral* Parser::ParseClassLiteral(const AstRawString* name,
   if (name != NULL) {
     proxy = NewUnresolved(name, CONST);
     Declaration* declaration =
-        factory()->NewVariableDeclaration(proxy, CONST, block_scope, pos);
+        factory()->NewVariableDeclaration(proxy, CONST, class_scope, pos);
     Declare(declaration, true, CHECK_OK);
   }
 
   Expression* extends = NULL;
   if (Check(Token::EXTENDS)) {
-    block_scope->set_start_position(scanner()->location().end_pos);
+    class_scope->set_start_position(scanner()->location().end_pos);
     extends = ParseLeftHandSideExpression(CHECK_OK);
   } else {
-    block_scope->set_start_position(scanner()->location().end_pos);
+    class_scope->set_start_position(scanner()->location().end_pos);
   }
 
 
@@ -4153,19 +4154,21 @@ ClassLiteral* Parser::ParseClassLiteral(const AstRawString* name,
 
   if (constructor == NULL) {
     constructor =
-        DefaultConstructor(extends != NULL, block_scope, pos, end_pos);
+        DefaultConstructor(extends != NULL, class_scope, pos, end_pos);
   }
 
-  block_scope->set_end_position(end_pos);
-  block_scope = block_scope->FinalizeBlockScope();
+  class_scope->set_end_position(end_pos);
 
   if (name != NULL) {
     DCHECK_NOT_NULL(proxy);
-    DCHECK_NOT_NULL(block_scope);
     proxy->var()->set_initializer_position(end_pos);
+  } else {
+    // Unnamed classes should not have scopes (the class scope will be empty).
+    DCHECK(class_scope->num_var_or_const() == 0);
+    class_scope = nullptr;
   }
 
-  return factory()->NewClassLiteral(name, block_scope, proxy, extends,
+  return factory()->NewClassLiteral(name, class_scope, proxy, extends,
                                     constructor, properties, pos, end_pos);
 }