hg: jdk8u/jdk8u-dev/hotspot: 8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.

[kevin.walls at oracle.com]

Changeset: 626f594dffa6
Author:    csahu
Date:      2016-03-01 12:50 +0530
URL:       http://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/626f594dffa6

8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
Reviewed-by: stuefe, coleenp, roland

! agent/src/os/linux/symtab.c
! src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
! src/cpu/x86/vm/c1_LIRGenerator_x86.cpp
! src/cpu/x86/vm/jniFastGetField_x86_32.cpp
! src/cpu/x86/vm/jniFastGetField_x86_64.cpp
! src/os/linux/vm/os_linux.cpp
! src/os_cpu/linux_x86/vm/copy_linux_x86.inline.hpp
! src/share/vm/c1/c1_Canonicalizer.cpp
! src/share/vm/c1/c1_GraphBuilder.cpp
! src/share/vm/c1/c1_LIRGenerator.cpp
! src/share/vm/c1/c1_LIRGenerator.hpp
! src/share/vm/ci/ciObjectFactory.cpp
! src/share/vm/classfile/classFileParser.cpp
! src/share/vm/classfile/placeholders.hpp
! src/share/vm/compiler/oopMap.hpp
! src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
! src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp
! src/share/vm/gc_implementation/g1/heapRegionRemSet.hpp
! src/share/vm/interpreter/templateInterpreter.cpp
! src/share/vm/memory/allocation.cpp
! src/share/vm/opto/callGenerator.cpp
! src/share/vm/opto/compile.cpp
! src/share/vm/opto/generateOptoStub.cpp
! src/share/vm/opto/lcm.cpp
! src/share/vm/opto/library_call.cpp
! src/share/vm/opto/macro.cpp
! src/share/vm/opto/parse1.cpp
! src/share/vm/opto/split_if.cpp
! src/share/vm/prims/jvmtiEnter.xsl
! src/share/vm/prims/jvmtiEnv.cpp
! src/share/vm/prims/jvmtiEnvBase.cpp
! src/share/vm/prims/jvmtiRedefineClasses.cpp
! src/share/vm/prims/unsafe.cpp
! src/share/vm/runtime/safepoint.cpp
! src/share/vm/services/threadService.hpp