Upgrade our copies of clang, llvm, lldb, compiler-rt and libc++ to 3.7.0

release.

Please note that from 3.5.0 onwards, clang, llvm and lldb require C++11
support to build; see UPDATING for more information.

Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.7.0/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.7.0/tools/clang/docs/ReleaseNotes.html>

Thanks to Ed Maste, Andrew Turner and Antoine Brodin for their help.

Exp-run:	antoine
Relnotes:	yes

1 files changed, 0 insertions, 5 deletions

diff --git a/contrib/libc++/src/future.cpp b/contrib/libc++/src/future.cpp
index 0c5c2c4..3132b18 100644
--- a/contrib/libc++/src/future.cpp
+++ b/contrib/libc++/src/future.cpp
@@ -98,7 +98,6 @@ __assoc_sub_state::set_value()
 #endif
     __state_ |= __constructed | ready;
     __cv_.notify_all();
-    __lk.unlock();
 }
 
 void
@@ -111,7 +110,6 @@ __assoc_sub_state::set_value_at_thread_exit()
 #endif
     __state_ |= __constructed;
     __thread_local_data()->__make_ready_at_thread_exit(this);
-    __lk.unlock();
 }
 
 void
@@ -124,7 +122,6 @@ __assoc_sub_state::set_exception(exception_ptr __p)
 #endif
     __exception_ = __p;
     __state_ |= ready;
-    __lk.unlock();
     __cv_.notify_all();
 }
 
@@ -138,7 +135,6 @@ __assoc_sub_state::set_exception_at_thread_exit(exception_ptr __p)
 #endif
     __exception_ = __p;
     __thread_local_data()->__make_ready_at_thread_exit(this);
-    __lk.unlock();
 }
 
 void
@@ -146,7 +142,6 @@ __assoc_sub_state::__make_ready()
 {
     unique_lock<mutex> __lk(__mut_);
     __state_ |= ready;
-    __lk.unlock();
     __cv_.notify_all();
 }