Minor cleanup for CIndex-based code-completion:
  - Provide an actual test for code-completion via CIndex. 
  - Actually print optional strings in c-index-test
  - Export clang_getCompletionChunkCompletionString from CIndex



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86550 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/CIndex/CIndex.exports b/tools/CIndex/CIndex.exports
index ba977c1..302324b 100644
--- a/tools/CIndex/CIndex.exports
+++ b/tools/CIndex/CIndex.exports
@@ -4,6 +4,7 @@
 _clang_createTranslationUnitFromSourceFile
 _clang_disposeIndex
 _clang_disposeTranslationUnit
+_clang_getCompletionChunkCompletionString
 _clang_getCompletionChunkKind
 _clang_getCompletionChunkText
 _clang_getCursor