Support for -plugin-arg- with -add-plugin

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124551 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/FrontendAction.cpp b/lib/Frontend/FrontendAction.cpp
index 1a5c042..5f78fb1 100644
--- a/lib/Frontend/FrontendAction.cpp
+++ b/lib/Frontend/FrontendAction.cpp
@@ -112,7 +112,7 @@
       if (it->getName() == CI.getFrontendOpts().AddPluginActions[i]) {
         llvm::OwningPtr<PluginASTAction> P(it->instantiate());
         FrontendAction* c = P.get();
-        if (P->ParseArgs(CI, CI.getFrontendOpts().PluginArgs))
+        if (P->ParseArgs(CI, CI.getFrontendOpts().AddPluginArgs[i]))
           Consumers.push_back(c->CreateASTConsumer(CI, InFile));
       }
     }