Update PNaCl to LLVM/Clang/Libcxx 223109 (nacl-change)

pnacl/driver/pnacl-ld.py

Index: pnacl/driver/pnacl-ld.py
diff --git a/pnacl/driver/pnacl-ld.py b/pnacl/driver/pnacl-ld.py
index 8f88171b01927dfc480c38be59850725381e4eb2..644985da4f50c86b36e64b1d5ef235b7c1dff8c5 100755
--- a/pnacl/driver/pnacl-ld.py
+++ b/pnacl/driver/pnacl-ld.py
@@ -37,7 +37,7 @@ EXTRA_ENV = {
   'OPT_LEVEL': '',  # Default opt is 0, but we need to know if it's explicitly
                     # requested or not, since we don't want to propagate
                     # the value to TRANSLATE_FLAGS if it wasn't explicitly set.
-  'OPT_LTO_FLAGS': '-std-link-opts -disable-internalize',

[JF, 2015/02/23 21:50:42]

Why isn't -disable-internalize necessary anymore? It came from:
  https://codereview.chromium.org/12843006

[jvoung (off chromium), 2015/02/23 22:12:00]

Well, the main thing is that -disable-internalize doesn't exist anymore:

http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20140804/229502.html

and the default is what Internalize=false used to do.

+  'OPT_LTO_FLAGS': '-std-link-opts',
   'OPT_FLAGS': '${#OPT_LEVEL && !OPT_LEVEL == 0 ? ${OPT_LTO_FLAGS}} ' +
                '-inline-threshold=${OPT_INLINE_THRESHOLD} ',