Add clang version to crashtracer string.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97848 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/CIndex/CIndex.cpp b/tools/CIndex/CIndex.cpp
index de83547..f07b94f 100644
--- a/tools/CIndex/CIndex.cpp
+++ b/tools/CIndex/CIndex.cpp
@@ -104,7 +104,8 @@
   {
     {
       llvm::raw_svector_ostream Out(CrashString);
-      Out << "ClangCIndex [createTranslationUnitFromSourceFile]: clang";
+      Out << "ClangCIndex [" << getClangFullVersion() << "]"
+          << "[createTranslationUnitFromSourceFile]: clang";
       for (llvm::SmallVectorImpl<const char*>::iterator I=Args.begin(),
            E=Args.end(); I!=E; ++I)
         Out << ' ' << *I;