RFR: 8286637: (fc) Memory mapped regions bigger than 2GB do not work correctly on Windows

[Brian Burkhalter]

Cast the last parameter `dwNumberOfBytesToMap` of `MapViewOfFile()` to a `SIZE_T`, not a `DWORD`, to avoid truncation.

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Commit messages:
 - 8286637: (fc) Memory mapped regions bigger than 2GB do not work correctly on Windows

Changes: https://git.openjdk.java.net/jdk/pull/8686/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8686&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8286637
  Stats: 75 lines in 2 files changed: 73 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8686.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8686/head:pull/8686

PR: https://git.openjdk.java.net/jdk/pull/8686