[arcmt] Add some additional driver flags to optionally emit or save the pre-migration ARC errors.

-arcmt-migrate-emit-errors : Emits the pre-migration ARC errors but it doesn't affect anything else
-arcmt-migrate-report-output : Writes out the pre-migration ARC errors to the provided plist file

rdar://9791454

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135491 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/FrontendTool/ExecuteCompilerInvocation.cpp b/lib/FrontendTool/ExecuteCompilerInvocation.cpp
index f2db3ae..1d10b24 100644
--- a/lib/FrontendTool/ExecuteCompilerInvocation.cpp
+++ b/lib/FrontendTool/ExecuteCompilerInvocation.cpp
@@ -100,7 +100,10 @@
     Act = new arcmt::ModifyAction(Act);
     break;
   case FrontendOptions::ARCMT_Migrate:
-    Act = new arcmt::MigrateAction(Act, CI.getFrontendOpts().ARCMTMigrateDir);
+    Act = new arcmt::MigrateAction(Act,
+                                   CI.getFrontendOpts().ARCMTMigrateDir,
+                                   CI.getFrontendOpts().ARCMTMigrateReportOut,
+                                CI.getFrontendOpts().ARCMTMigrateEmitARCErrors);
     break;
   }