Add 4.4.6 to GccVersions[] in lib/Driver/ToolChains.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138940 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index d5b132c..f56ab43 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -1489,7 +1489,7 @@
   }
   static const char* GccVersions[] = {"4.6.1", "4.6.0", "4.6",
                                       "4.5.3", "4.5.2", "4.5.1", "4.5",
-                                      "4.4.5", "4.4.4", "4.4.3", "4.4",
+                                      "4.4.6", "4.4.5", "4.4.4", "4.4.3", "4.4",
                                       "4.3.4", "4.3.3", "4.3.2", "4.3",
                                       "4.2.4", "4.2.3", "4.2.2", "4.2.1",
                                       "4.2", "4.1.1"};