[libunwind] Make the test depend on the libunwind explicitly.

Before this patch the `ninja check-unwind` won't rebuild the unwind library.

Reviewed By: jroelofs

Differential Revision: https://reviews.llvm.org/D85004

GitOrigin-RevId: 9c3f6fb68807c8100797b001c0621ae0c9a6d1fc
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 794a59f..2b945e6 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -32,4 +32,4 @@
 
 add_lit_testsuite(check-unwind "Running libunwind tests"
   ${CMAKE_CURRENT_BINARY_DIR}
-  DEPENDS ${LIBUNWIND_TEST_DEPS})
+  DEPENDS unwind ${LIBUNWIND_TEST_DEPS})