[8u40] Backport requests for 8061817 and 8062169

[Tobias Hartmann]

Hi,

please review the following backport requests for 8u40.

(1) 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of
method
https://bugs.openjdk.java.net/browse/JDK-8061817
http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/d30c8335bb6f

(2) 8062169: Multiple OSR compilations issued for same bci
https://bugs.openjdk.java.net/browse/JDK-8062169
http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/8edc39841abe

The changes were pushed last week. Nightly testing showed no problems. The
changes apply cleanly to 8u40.

Thanks,
Tobias