Swift Calling Convention: add swiftself attribute.

Differential Revision: http://reviews.llvm.org/D17866

llvm-svn: 264754

llvm/lib/Bitcode/Writer/BitcodeWriter.cpp

@@ -259,6 +259,8 @@ static uint64_t getAttrKindEncoding(Attribute::AttrKind Kind) {
     return bitc::ATTR_KIND_SANITIZE_THREAD;
   case Attribute::SanitizeMemory:
     return bitc::ATTR_KIND_SANITIZE_MEMORY;
+  case Attribute::SwiftSelf:
+    return bitc::ATTR_KIND_SWIFT_SELF;
   case Attribute::UWTable:
     return bitc::ATTR_KIND_UW_TABLE;
   case Attribute::ZExt: