InstrProf: std::to_string needs to #include <string>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228136 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/unittests/ProfileData/CoverageMappingTest.cpp b/unittests/ProfileData/CoverageMappingTest.cpp
index 5477f8143007f2846a7d2dec5b3dba08a4edc85d..5709f91b0a4719182145b4aa14a8f3522b0d9556 100644 (file)
--- a/unittests/ProfileData/CoverageMappingTest.cpp
+++ b/unittests/ProfileData/CoverageMappingTest.cpp
@@ -13,6 +13,8 @@
 #include "llvm/Support/raw_ostream.h"
 #include "gtest/gtest.h"
 
+#include <string>
+
 using namespace llvm;
 using namespace coverage;