[clang-tidy] Use -fexceptions explicitly in the tests that need exceptions.

This should fix relevant buildbot breakages.

llvm-svn: 305024

clang-tools-extra/test/clang-tidy/modernize-use-noexcept-macro.cpp

@@ -1,6 +1,6 @@
 // RUN: %check_clang_tidy %s modernize-use-noexcept %t -- \
 // RUN:   -config="{CheckOptions: [{key: modernize-use-noexcept.ReplacementString, value: 'NOEXCEPT'}]}" \
-// RUN:   -- -std=c++11
+// RUN:   -- -std=c++11 -fexceptions
 
 // Example definition of NOEXCEPT -- simplified test to see if noexcept is supported.
 #if (__has_feature(cxx_noexcept))

clang-tools-extra/test/clang-tidy/modernize-use-noexcept-opt.cpp

@@ -1,6 +1,6 @@
 // RUN: %check_clang_tidy %s modernize-use-noexcept %t -- \
 // RUN:   -config="{CheckOptions: [{key: modernize-use-noexcept.UseNoexceptFalse, value: 0}]}" \
-// RUN:   -- -std=c++11
+// RUN:   -- -std=c++11 -fexceptions
 
 class A {};
 class B {};

clang-tools-extra/test/clang-tidy/modernize-use-noexcept.cpp

@@ -1,5 +1,5 @@
 // RUN: %check_clang_tidy %s modernize-use-noexcept %t -- \
-// RUN:   -- -std=c++11
+// RUN:   -- -std=c++11 -fexceptions
 
 class A {};
 class B {};