Start MCAsmStreamer implementation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74044 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/MC/MCContext.h b/include/llvm/MC/MCContext.h
index 78943fc..3ccc4da 100644
--- a/include/llvm/MC/MCContext.h
+++ b/include/llvm/MC/MCContext.h
@@ -113,7 +113,7 @@
 ///                  allocator supports it).
 /// @return The allocated memory. Could be NULL.
 inline void *operator new(size_t Bytes, llvm::MCContext &C,
-                          size_t Alignment) throw () {
+                          size_t Alignment = 16) throw () {
   return C.Allocate(Bytes, Alignment);
 }
 /// @brief Placement delete companion to the new above.