1148     if (is_strong(language_mode()) && scope_->is_function_scope() &&  in ParseStatementList()
1445     } else if (is_strong(language_mode()) && IsUndefined(local_name)) {  in ParseNamedImports()
1764       if (is_strong(language_mode())) {  in ParseSubStatement()
2125       is_strong(language_mode())  in ParseFunctionDeclaration()
2178   VariableMode mode = is_strong(language_mode()) ? CONST : LET;  in ParseClassDeclaration()
2320     if (is_strong(language_mode())) {  in ParseVariableDeclarations()
2510       if (is_strong(language_mode()) &&  in ParseExpressionOrLabelledStatement()
2717     if (is_strong(language_mode()) &&  in ParseReturnStatement()
2869   if (is_strong(language_mode()) && stat != NULL && !stat->IsJump() &&  in ParseCaseClause()
4289     if (is_strong(language_mode) && IsSubclassConstructor(kind)) {  in ParseFunctionLiteral()
4740   if (is_strong(language_mode()) && IsUndefined(name)) {  in ParseClassLiteral()
5205                   cooked_idx, is_strong(language_mode()), pos),  in CloseTemplateLiteral()
5210             is_strong(language_mode()), pos),  in CloseTemplateLiteral()
5299                                              is_strong(language_mode()),  in PrepareSpreadArguments()
5385   else if (is_strong(mode))  in SetLanguageMode()