LLVM: Update submodule to include SRet support patch for MSP430.

pftbest · alexcrichton · commit 1c5584d1068f · 2017-03-10T08:10:21.000-08:00
diff --git a/src/llvm b/src/llvm
@@ -1 +1 @@
-Subproject commit 50ab09fb43f038e4f824eea6cb278f560d3e8621
+Subproject commit 859fb269364623b17e092efaba3f94e70ce97c5e
diff --git a/src/rustllvm/llvm-auto-clean-trigger b/src/rustllvm/llvm-auto-clean-trigger
@@ -1,4 +1,4 @@
 # If this file is modified, then llvm will be forcibly cleaned and then rebuilt.
 # The actual contents of this file do not matter, but to trigger a change on the
 # build bots then the contents should be changed so git updates the mtime.
-2017-03-02
+2017-03-04
