Manage MachineFunctions with an analysis Pass instead of the Annotable

mechanism. To support this, make MachineFunctionPass a little more
complete.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77654 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/MachineVerifier.cpp

@@ -55,6 +55,7 @@ namespace {
 
     void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.setPreservesAll();
+      MachineFunctionPass::getAnalysisUsage(AU);
     }
 
     bool runOnMachineFunction(MachineFunction &MF);