Upgrade our copy of clang and llvm to 3.5.1 release. This is a bugfix

only release, no new features have been added.

Please note that this version requires C++11 support to build; see
UPDATING for more information.

Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.5.1/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.5.1/tools/clang/docs/ReleaseNotes.html>

MFC after:	1 month
X-MFC-With:	276479

1 files changed, 32 insertions, 0 deletions

diff --git a/contrib/llvm/patches/patch-14-llvm-r216571-dynamiclib-usability.diff b/contrib/llvm/patches/patch-14-llvm-r216571-dynamiclib-usability.diff
new file mode 100644
index 0000000..ff0a6d1
--- /dev/null
+++ b/contrib/llvm/patches/patch-14-llvm-r216571-dynamiclib-usability.diff
@@ -0,0 +1,32 @@
+Pull in r216571 from upstream llvm trunk (by Zachary Turner):
+
+  Fix some semantic usability issues with DynamicLibrary.
+
+  This patch allows invalid DynamicLibrary instances to be
+  constructed, and fixes the const-correctness of the isValid()
+  method.
+
+  No functional change.
+
+This is needed for supporting the upgrade to a newer LLDB snapshot.
+
+Introduced here: http://svnweb.freebsd.org/changeset/base/275153
+
+Index: include/llvm/Support/DynamicLibrary.h
+===================================================================
+--- include/llvm/Support/DynamicLibrary.h
++++ include/llvm/Support/DynamicLibrary.h
+@@ -43,10 +43,11 @@ namespace sys {
+     // Opaque data used to interface with OS-specific dynamic library handling.
+     void *Data;
+ 
++  public:
+     explicit DynamicLibrary(void *data = &Invalid) : Data(data) {}
+-  public:
++
+     /// Returns true if the object refers to a valid library.
+-    bool isValid() { return Data != &Invalid; }
++    bool isValid() const { return Data != &Invalid; }
+ 
+     /// Searches through the library for the symbol \p symbolName. If it is
+     /// found, the address of that symbol is returned. If not, NULL is returned.