Driver: Sketch Tool and ToolChain classes.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67036 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index d5b337b..60dd45c 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -582,13 +582,19 @@
   return 0;
 }
 
-llvm::sys::Path Driver::GetFilePath(const char *Name) const {
+llvm::sys::Path Driver::GetFilePath(const char *Name,
+                                    const ToolChain *TC) const {
   // FIXME: Implement.
+  if (!TC) TC = DefaultToolChain;
+
   return llvm::sys::Path(Name);
 }
 
-llvm::sys::Path Driver::GetProgramPath(const char *Name) const {
+llvm::sys::Path Driver::GetProgramPath(const char *Name, 
+                                       const ToolChain *TC) const {
   // FIXME: Implement.
+  if (!TC) TC = DefaultToolChain;
+
   return llvm::sys::Path(Name);
 }