Use the global functions instead of the Program methods.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@183861 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Compilation.cpp b/lib/Driver/Compilation.cpp
index 1bff4a3..bc1a75a 100644
--- a/lib/Driver/Compilation.cpp
+++ b/lib/Driver/Compilation.cpp
@@ -291,11 +291,9 @@
 
   std::string Error;
   bool ExecutionFailed;
-  int Res =
-    llvm::sys::Program::ExecuteAndWait(Prog, Argv,
-                                       /*env*/0, Redirects,
-                                       /*secondsToWait*/0, /*memoryLimit*/0,
-                                       &Error, &ExecutionFailed);
+  int Res = llvm::sys::ExecuteAndWait(Prog, Argv, /*env*/ 0, Redirects,
+                                      /*secondsToWait*/ 0, /*memoryLimit*/ 0,
+                                      &Error, &ExecutionFailed);
   if (!Error.empty()) {
     assert(Res && "Error string set with 0 result code!");
     getDriver().Diag(clang::diag::err_drv_command_failure) << Error;