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/tools/driver/driver.cpp b/tools/driver/driver.cpp
index 4c40da3..b3c301c 100644
--- a/tools/driver/driver.cpp
+++ b/tools/driver/driver.cpp
@@ -434,7 +434,7 @@
 
     // Do a PATH lookup, if there are no directory components.
     if (llvm::sys::path::filename(InstalledPath) == InstalledPath) {
-      llvm::sys::Path Tmp = llvm::sys::Program::FindProgramByName(
+      llvm::sys::Path Tmp = llvm::sys::FindProgramByName(
         llvm::sys::path::filename(InstalledPath.str()));
       if (!Tmp.empty())
         InstalledPath = Tmp.str();