[coroutines] Part 3 of N: Adding Boilerplate for Coroutine Passes

This adds boilerplate code for all coroutine passes,
the passes are no-ops for now.
Also, a small test has been added to verify that passes execute in
the expected order or not at all if coroutine support is disabled.

Patch by Gor Nishanov!

Differential Revision: https://reviews.llvm.org/D22847

llvm-svn: 277033
diff --git a/llvm/tools/opt/CMakeLists.txt b/llvm/tools/opt/CMakeLists.txt
index 9194a6b..b4e0505 100644
--- a/llvm/tools/opt/CMakeLists.txt
+++ b/llvm/tools/opt/CMakeLists.txt
@@ -4,6 +4,7 @@
   BitWriter
   CodeGen
   Core
+  Coroutines
   IPO
   IRReader
   InstCombine