Bug#35259704 Windows build with -DWIN_DEBUG_NO_INLINE=1 fails on "library limit of 65535..."

The mysqld.def file is too long, it can't have > 65535 entries.
Last time the same problem was improved it was in Bug#33357465, where we disabled std::forward template method instances.
However, we did not check if it is in the `std::` namespace, and were cutting out possibly all "forward" methods.
Also, we really don't need any std:: methods exported, as they are only part of the standard C++ library.
To remove all the std:: methods, we will check unmangled part of the `symbol_line` to look for " __cdecl std::", where the `__cdecl` is function call type modifier which is followed by the name with namespaces. I hope this will not be present in methods which are not in `std::` namespace, but have a template argument to such method.

This brings down the number of symbols exported to ~38300, leaving a lot of room for expansion.

Change-Id: I9ca13beba02adbfe4daa7d452ad0be803d190440

Author: Marcin Babij

sql/create_def.cc

@@ -327,7 +327,6 @@ void Unique_symbol_map::insert(const std::string &symbol_line) {
       "_VInfreq_?",  // special label (exception handler?) for Intel compiler
       "?_E",         // vector deleting destructor
       "<lambda_",    // anything that is lambda-related
-      "??$forward",  // std::forward template instantiations
   };
   if (symbol_line.find("External") == std::string::npos) {
     return;
@@ -372,16 +371,23 @@ void Unique_symbol_map::insert(const std::string &symbol_line) {
   }
   // Extract the actual symbol name we care about and check it's not on list of
   // compiler's symbols.
-  std::string &symbol = columns[index + 1];
+  auto &symbol = columns[index + 1];
   for (auto &compiler_symbol : compiler_symbols) {
     if (symbol.find(compiler_symbol) != std::string::npos) {
       return;
     }
   }
+
   // Check if we have function or data.
   if (symbol_line.find("notype () ") == std::string::npos) {
     symbol.append(" DATA");
   }
+
+  // Check if this is a function inside the std namespace
+  if (symbol_line.find(" __cdecl std::") != std::string::npos) {
+    return;
+  }
+
   // Check if this symbol was seen before.
   auto res = m_symbols_seen.emplace(symbol);
   if (res.second) {