* Rename MethodPass class to FunctionPass

- Rename runOnMethod to runOnFunction
* Transform getAnalysisUsageInfo into getAnalysisUsage
  - Method is now const
  - It now takes one AnalysisUsage object to fill in instead of 3 vectors
    to fill in
  - Pass's now specify which other passes they _preserve_ not which ones
    they modify (be conservative!)
  - A pass can specify that it preserves all analyses (because it never
    modifies the underlying program)
* s/Method/Function/g in other random places as well


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2333 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Analysis/DataStructure/DataStructure.h

@@ -485,11 +485,10 @@ public:
   // If the pass pipeline is done with this pass, we can release our memory...
   virtual void releaseMemory();
 
-  // getAnalysisUsageInfo - This obviously provides a call graph
-  virtual void getAnalysisUsageInfo(AnalysisSet &Required,
-                                    AnalysisSet &Destroyed,
-                                    AnalysisSet &Provided) {
-    Provided.push_back(ID);
+  // getAnalysisUsage - This obviously provides a call graph
+  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+    AU.setPreservesAll();
+    AU.addProvided(ID);
   }
 };