[11u] RFR(S): 8221408: Windows 32bit build build errors/warnings in hotspot

[Lindenmaier, Goetz]

Hi,

I would like to downport this change as it fixes warnings
of the windows 32 bit build.
I had to change the syntax of the pragma disabling
the warning in os_windows_x86.cpp, because the macros
used in jdk13 are not available in jdk11.  Thus I need a review.

We are using visual studio 17, Version 19.16.27031.1.
http://cr.openjdk.java.net/~goetz/wr19/8221408-ntintel_warnings-jdk11/01/

Best regards,
  Goetz.