Subzero: Use a "known" version of clang-format.

src/assembler.h

 //===- subzero/src/assembler.h - Integrated assembler -----------*- C++ -*-===//
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
 // Modified by the Subzero authors.
 //
 //===----------------------------------------------------------------------===//
 //
 //                        The Subzero Code Generator
@@ skipping 39 matching lines @@
     return *reinterpret_cast<T *>(contents_ + position);
   }
 
   template <typename T> void Store(intptr_t position, T value) {
     assert(position >= 0 &&
            position <= (Size() - static_cast<intptr_t>(sizeof(T))));
     *reinterpret_cast<T *>(contents_ + position) = value;
   }
 
   // Emit a fixup at the current location.
-  void EmitFixup(AssemblerFixup *fixup) {
-    fixup->set_position(Size());
-  }
+  void EmitFixup(AssemblerFixup *fixup) { fixup->set_position(Size()); }
 
   // Get the size of the emitted code.
   intptr_t Size() const { return cursor_ - contents_; }
   uintptr_t contents() const { return contents_; }
 
 // To emit an instruction to the assembler buffer, the EnsureCapacity helper
 // must be used to guarantee that the underlying data area is big enough to
 // hold the emitted instruction. Usage:
 //
 //     AssemblerBuffer buffer;
@@ skipping 123 matching lines @@
 private:
   ArenaAllocator<32 * 1024> Allocator;
 
 protected:
   AssemblerBuffer buffer_;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ASSEMBLER_H_