RFR (S) 8181143: Introduce diagnostic flag to abort VM on too long VM operations

[Aleksey Shipilev]

On 12/11/18 4:18 PM, Roman Kennke wrote:
> this looks good to me.

Thanks for reviews! I fixed "jint" -> "int" in atomic flag to make Windows and Solaris builds happy,
updated the webrev in-place:
  http://cr.openjdk.java.net/~shade/8181143/webrev.04/

Testing: x86_64 build, hotspot tier1, new test, jdk-submit (passed!)

-Aleksey