Insulate these from changes to the default for -Wunreachable-code.

llvm-svn: 94326
diff --git a/clang/test/CodeGenCXX/throw-expressions.cpp b/clang/test/CodeGenCXX/throw-expressions.cpp
index 9449618..1670e445 100644
--- a/clang/test/CodeGenCXX/throw-expressions.cpp
+++ b/clang/test/CodeGenCXX/throw-expressions.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -emit-llvm-only -verify %s
+// RUN: %clang_cc1 -emit-llvm-only -verify %s -Wno-unreachable-code
 
 int val = 42;
 int& test1() {