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/examples/BrainF/BrainFDriver.cpp b/examples/BrainF/BrainFDriver.cpp
index 4eaa494..021b951 100644
--- a/examples/BrainF/BrainFDriver.cpp
+++ b/examples/BrainF/BrainFDriver.cpp
@@ -80,13 +80,13 @@
   }
 
   //ret i32 0
-  ReturnInst::Create(ConstantInt::get(APInt(32, 0)), bb);
+  ReturnInst::Create(getGlobalContext().getConstantInt(APInt(32, 0)), bb);
 }
 
 int main(int argc, char **argv) {
   cl::ParseCommandLineOptions(argc, argv, " BrainF compiler\n");
 
-  LLVMContext Context;
+  LLVMContext &Context = getGlobalContext();
 
   if (InputFilename == "") {
     std::cerr<<"Error: You must specify the filename of the program to "