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/lib/Bitcode/Reader/BitReader.cpp b/lib/Bitcode/Reader/BitReader.cpp
index 52851cd..2baf71b 100644
--- a/lib/Bitcode/Reader/BitReader.cpp
+++ b/lib/Bitcode/Reader/BitReader.cpp
@@ -18,11 +18,12 @@
 /* Builds a module from the bitcode in the specified memory buffer, returning a
    reference to the module via the OutModule parameter. Returns 0 on success.
    Optionally returns a human-readable error message via OutMessage. */ 
-int LLVMParseBitcode(LLVMMemoryBufferRef MemBuf,
+int LLVMParseBitcode(LLVMMemoryBufferRef MemBuf, LLVMContextRef ContextRef,
                      LLVMModuleRef *OutModule, char **OutMessage) {
   std::string Message;
   
-  *OutModule = wrap(ParseBitcodeFile(unwrap(MemBuf), &Message));
+  *OutModule = wrap(ParseBitcodeFile(unwrap(MemBuf), unwrap(ContextRef),  
+                                     &Message));
   if (!*OutModule) {
     if (OutMessage)
       *OutMessage = strdup(Message.c_str());
@@ -36,11 +37,13 @@
    a module provider which performs lazy deserialization. Returns 0 on success.
    Optionally returns a human-readable error message via OutMessage. */ 
 int LLVMGetBitcodeModuleProvider(LLVMMemoryBufferRef MemBuf,
+                                 LLVMContextRef ContextRef,
                                  LLVMModuleProviderRef *OutMP,
                                  char **OutMessage) {
   std::string Message;
   
-  *OutMP = wrap(getBitcodeModuleProvider(unwrap(MemBuf), &Message));
+  *OutMP = wrap(getBitcodeModuleProvider(unwrap(MemBuf), unwrap(ContextRef), 
+                                         &Message));
   if (!*OutMP) {
     if (OutMessage)
       *OutMessage = strdup(Message.c_str());