<AWT Dev> [11] Review Request: 8202051 Address compilation warnings in libawt with VS2017

[Sergey Bylokhov]

Hello.
Please review the fix for jdk11.

Bug: https://bugs.openjdk.java.net/browse/JDK-8202051
Webrev: http://cr.openjdk.java.net/~serb/8202051/webrev.00

The warnings which were disabled in JDK-8202052[1] are fixed. Note that 
these warnings were found in debug build only.
  - warning C4291: one more delete[] operator was added. see [2].
  - warning C4311/C4302: intermediate cast to the "intptr_t" was added.

[1] https://bugs.openjdk.java.net/browse/JDK-8202052
[2] https://msdn.microsoft.com/en-us/library/cxdxz3x6.aspx

-- 
Best regards, Sergey.