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
diff --git a/lib/Transforms/IPO/IPConstantPropagation.cpp b/lib/Transforms/IPO/IPConstantPropagation.cpp
index e27792a..30834e2 100644
--- a/lib/Transforms/IPO/IPConstantPropagation.cpp
+++ b/lib/Transforms/IPO/IPConstantPropagation.cpp
@@ -56,6 +56,8 @@
   bool Changed = false;
   bool LocalChange = true;
 
+  Context = &M.getContext();
+
   // FIXME: instead of using smart algorithms, we just iterate until we stop
   // making changes.
   while (LocalChange) {