[8u60] Request for approval for bulk integration of hs25.60-b20

[Alejandro E Murillo]

Requesting approval to integrate hs25.60-b20 into jdk8u60-b20.

A webrev is available at:

http://cr.openjdk.java.net/~amurillo/8u60/hs25.60-b20-jdk8u60-b20.webrev/

Pre-integration testing is in progress; the integration will proceed
only after SQE has analyzed the results and approved.

The fixes in the proposed integration are below.  All have undergone
nightly testing and are already in a jdk9 repository.

8036913: make DeoptimizeALot dependent on number of threads
8051045: HotSpot fails to wrap Exceptions from invokedynamic in a BootstrapMethodError
8072588: JVM crashes in JNI if toString is declared as an interface method
8074312: Enable hotspot builds on 4.x Linux kernels
8078666: JVM fastdebug build compiled with GCC 5 asserts with "widen increases"
8078834: [TESTBUG] Tests fails on ARM64 due to unknown hardware
8078866: compiler/eliminateAutobox/6934604/TestIntBoxing.java assert(p_f->Opcode() == Op_IfFalse) failed
8080428: [TESTBUG] java/lang/invoke/8022701/MHIllegalAccess.java - FAIL: Unexpected wrapped exception java.lang.BootstrapMethodError
8085869: new hotspot build - hs25.60-b20
8086111: BACKOUT - metaspace/shrink_grow/CompressedClassSpaceSize fails with OOM: Compressed class space

-- 
Alejandro