RFR: 8190925: Deprecate FastTLABRefill and set default off

[Robbin Ehn]

Hi all, please review.

The option FastTLABRefill work only in C1 (interpreter and c2 don't use this 
option) when using either SerialGC or ParrallelGC (and deprecated CMS). Both the 
newly integrated Memory-Leak Profiler and upcoming Low Overhead Profiler don't 
work when FastTLABRefill is enabled.

For more info please see CSR:
https://bugs.openjdk.java.net/browse/JDK-8190926

Issue:
https://bugs.openjdk.java.net/browse/JDK-8190925

Code below, thanks Robbin!

diff -r cf127be65014 src/hotspot/share/runtime/arguments.cpp
--- a/src/hotspot/share/runtime/arguments.cpp	Sat Nov 11 01:21:09 2017 +0100
+++ b/src/hotspot/share/runtime/arguments.cpp	Mon Nov 13 14:26:27 2017 +0100
@@ -385,2 +385,3 @@
    { "UseMembar",                    JDK_Version::jdk(10), 
JDK_Version::jdk(11), JDK_Version::jdk(12) },
+  { "FastTLABRefill",               JDK_Version::jdk(10), JDK_Version::jdk(11), 
JDK_Version::jdk(12) },
    { "IgnoreUnverifiableClassesDuringDump", JDK_Version::jdk(10), 
JDK_Version::undefined(), JDK_Version::undefined() },
diff -r cf127be65014 src/hotspot/share/runtime/globals.hpp
--- a/src/hotspot/share/runtime/globals.hpp	Sat Nov 11 01:21:09 2017 +0100
+++ b/src/hotspot/share/runtime/globals.hpp	Mon Nov 13 14:26:27 2017 +0100
@@ -2015,4 +2015,4 @@
                                                                              \
-  product(bool, FastTLABRefill, true,                                       \
-          "Use fast TLAB refill code")                                      \
+  product(bool, FastTLABRefill, false,                                      \
+          "(Deprecated) Use fast TLAB refill code")                         \
                                                                              \