RFR: 8202449: overflow handling in Random.doubles

[Raffaello Giulietti]

Extend the range of Random.doubles(double, double) and similar methods.

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Commit messages:
 - 8202449: overflow handling in Random.doubles

Changes: https://git.openjdk.java.net/jdk/pull/8791/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8791&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8202449
  Stats: 108 lines in 4 files changed: 47 ins; 25 del; 36 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8791.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8791/head:pull/8791

PR: https://git.openjdk.java.net/jdk/pull/8791