Add a pointer to the owning LLVMContext to Module.  This requires threading LLVMContext through a lot
of the bitcode reader and ASM parser APIs, as well as supporting it in all of the tools.

Patches for Clang and LLVM-GCC to follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74614 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/lto/LTOCodeGenerator.cpp b/tools/lto/LTOCodeGenerator.cpp
index 52624eb..8ae196f 100644
--- a/tools/lto/LTOCodeGenerator.cpp
+++ b/tools/lto/LTOCodeGenerator.cpp
@@ -70,7 +70,8 @@
 
 
 LTOCodeGenerator::LTOCodeGenerator() 
-    : _linker("LinkTimeOptimizer", "ld-temp.o"), _target(NULL),
+    : _context(new LLVMContext()),
+      _linker("LinkTimeOptimizer", "ld-temp.o", _context), _target(NULL),
       _emitDwarfDebugInfo(false), _scopeRestrictionsDone(false),
       _codeModel(LTO_CODEGEN_PIC_MODEL_DYNAMIC),
       _nativeObjectFile(NULL), _gccPath(NULL), _assemblerPath(NULL)