[driver] Have the crash diagnostics print the clang version information.
rdar://11518308


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157346 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index 9e3ba84..9a73da6 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -386,6 +386,9 @@
     << "Please submit a bug report to " BUG_REPORT_URL " and include command"
     " line arguments and all diagnostic information.";
 
+  // Print the version of the compiler.
+  PrintVersion(C, llvm::errs());
+
   // Suppress driver output and emit preprocessor output to temp file.
   CCCIsCPP = true;
   CCGenDiagnostics = true;