Bug#37471922: Auto-fix clang-tidy warnings [60/n] [noclose]

Generate fixes for a number of warnings that clang-tidy can fix automatically.
This commit fixes the warning 'readability-container-contains'.

Change example:
 - if (config.count(section_id) == 0) {
 + if (!config.contains(section_id)) {

Change-Id: I240934c144bc5c6f729bdfc6fea14ffc6a748338

Author: MRajcic

plugin/group_replication/libmysqlgcs/src/bindings/xcom/gcs_xcom_communication_interface.cc

@@ -184,7 +184,7 @@ int Gcs_xcom_communication::add_event_listener(
   int handler_key = 0;
   do {
     handler_key = rand();
-  } while (event_listeners.count(handler_key) != 0);
+  } while (event_listeners.contains(handler_key));
 
   event_listeners.emplace(handler_key, event_listener);
 

plugin/group_replication/libmysqlgcs/src/bindings/xcom/gcs_xcom_control_interface.cc

@@ -924,7 +924,7 @@ int Gcs_xcom_control::add_event_listener(
   int handler_key = 0;
   do {
     handler_key = rand();
-  } while (event_listeners.count(handler_key) != 0);
+  } while (event_listeners.contains(handler_key));
 
   event_listeners.emplace(handler_key, event_listener);
 

router/src/harness/src/dynamic_config.cc

@@ -133,7 +133,7 @@ void DynamicConfig::set_option(const ValueType value_type,
                                const OptionValue &value) {
   auto &config = get_config(value_type);
 
-  if (config.count(section_id) == 0) {
+  if (!config.contains(section_id)) {
     SectionOptions section_options;
     section_options[std::string(option_name)] = value;
     config[section_id].options = std::move(section_options);

sql/gen_keyword_list.cc

@@ -159,7 +159,7 @@ int main(int argc, const char *argv[]) {
 
     if (!isalpha(sym->name[0])) continue;  // Operator.
 
-    bool is_reserved = keyword_tokens.count(sym->tok) == 0;
+    bool is_reserved = !keyword_tokens.contains(sym->tok);
     if (!words.insert(std::make_pair(sym->name, is_reserved)).second) {
       fprintf(stderr,
               "This should not happen: \"%s\" has duplicates."

storage/ndb/src/common/mgmcommon/DnsCache.cpp

@@ -54,7 +54,7 @@ bool LocalDnsCache::getCachedOrResolveAddress(ndb_sockaddr *result,
 
 int LocalDnsCache::getAddress(ndb_sockaddr *result_address,
                               const char *hostname) {
-  if (m_failed_lookups.count(hostname) != 0) {
+  if (m_failed_lookups.contains(hostname)) {
     // Lookup failed earlier, same result now
     return -1;
   }