Switch the C++ include interface in the ToolChain to use the same naming
as the system include interface before I start adding implementations of
it to individual ToolChain implementations.

llvm-svn: 143751
diff --git a/clang/lib/Driver/ToolChain.cpp b/clang/lib/Driver/ToolChain.cpp
index 5418436..9453848 100644
--- a/clang/lib/Driver/ToolChain.cpp
+++ b/clang/lib/Driver/ToolChain.cpp
@@ -230,8 +230,8 @@
   return ToolChain::CST_Libstdcxx;
 }
 
-void ToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &Args,
-                                             ArgStringList &CmdArgs) const {
+void ToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
+                                             ArgStringList &CC1Args) const {
   // Header search paths should be handled by each of the subclasses.
   // Historically, they have not been, and instead have been handled inside of
   // the CC1-layer frontend. As the logic is hoisted out, this generic function
@@ -241,7 +241,7 @@
   // '-stdlib=' flag down to CC1 so that it can in turn customize the C++
   // header search paths with it. Once all systems are overriding this
   // function, the CC1 flag and this line can be removed.
-  Args.AddAllArgs(CmdArgs, options::OPT_stdlib_EQ);
+  DriverArgs.AddAllArgs(CC1Args, options::OPT_stdlib_EQ);
 }
 
 void ToolChain::AddCXXStdlibLibArgs(const ArgList &Args,