Shorten the help test for -no-canonical-prefixes, put it behind HelpHidden and
claim it in Driver.cpp instead of Tools.cpp.

llvm-svn: 90777
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index c404e76..7f7affb 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -115,6 +115,9 @@
 
   InputArgList *Args = ParseArgStrings(Start, End);
 
+  // -no-canonical-prefixes is used very early in main.
+  Args->ClaimAllArgs(options::OPT_no_canonical_prefixes);
+
   // Extract -ccc args.
   //
   // FIXME: We need to figure out where this behavior should live. Most of it