Use PassManagerBase instead of FunctionPassManager for functions

that merely add passes. This allows them to be used with either
FunctionPassManager or PassManager, or even with a custom new
kind of pass manager.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48256 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/Mips/Mips.h

@@ -19,7 +19,6 @@
 
 namespace llvm {
   class MipsTargetMachine;
-  class FunctionPassManager;
   class FunctionPass;
   class MachineCodeEmitter;