update for api change.

llvm-svn: 100718
diff --git a/clang/tools/driver/cc1_main.cpp b/clang/tools/driver/cc1_main.cpp
index ff48684..d329c52 100644
--- a/clang/tools/driver/cc1_main.cpp
+++ b/clang/tools/driver/cc1_main.cpp
@@ -249,7 +249,7 @@
 
   // Set an error handler, so that any LLVM backend diagnostics go through our
   // error handler.
-  llvm::llvm_install_error_handler(LLVMErrorHandler,
+  llvm::install_fatal_error_handler(LLVMErrorHandler,
                                   static_cast<void*>(&Clang->getDiagnostics()));
 
   DiagsBuffer.FlushDiagnostics(Clang->getDiagnostics());