[OPENMP]Add -Wunintialized to the erroneous tests for future fix PR42392,
NFC.

llvm-svn: 365334
diff --git a/clang/test/OpenMP/target_depend_messages.cpp b/clang/test/OpenMP/target_depend_messages.cpp
index d699080..a7ac176 100644
--- a/clang/test/OpenMP/target_depend_messages.cpp
+++ b/clang/test/OpenMP/target_depend_messages.cpp
@@ -1,6 +1,6 @@
-// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -o - -std=c++11 %s
+// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -o - -std=c++11 %s -Wuninitialized
 
-// RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 100 -o - -std=c++11 %s
+// RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 100 -o - -std=c++11 %s -Wuninitialized
 
 void foo() {
 }