Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a number of issues in

our current context-passing stuff, which is also fixed here


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76089 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Analysis/LoopPass.h

@@ -37,6 +37,7 @@ public:
 
   // Initialization and finalization hooks.
   virtual bool doInitialization(Loop *L, LPPassManager &LPM) {
+    Context = L->getHeader()->getContext();
     return false;
   }