Add a (currently unused) "options" parameter to
clang_reparseTranslationUnit(), along with a function to retrieve the
default recommended reparsing options for a translation unit.

Also, add the CXTranslationUnit_CacheCompletionResults flag, which is
also currently unused.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110811 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/c-index-test/c-index-test.c b/tools/c-index-test/c-index-test.c
index be5084b..f95829b 100644
--- a/tools/c-index-test/c-index-test.c
+++ b/tools/c-index-test/c-index-test.c
@@ -639,7 +639,8 @@
   }
   
   for (trial = 0; trial < trials; ++trial) {
-    if (clang_reparseTranslationUnit(TU, num_unsaved_files, unsaved_files)) {
+    if (clang_reparseTranslationUnit(TU, num_unsaved_files, unsaved_files,
+                                     clang_defaultReparseOptions(TU))) {
       clang_disposeTranslationUnit(TU);
       free_remapped_files(unsaved_files, num_unsaved_files);
       clang_disposeIndex(Idx);
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index 34de78c..0f43cf6 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -1459,9 +1459,14 @@
     delete static_cast<ASTUnit *>(CTUnit);
 }
 
+unsigned clang_defaultReparseOptions(CXTranslationUnit TU) {
+  return CXReparse_None;
+}
+
 int clang_reparseTranslationUnit(CXTranslationUnit TU,
                                  unsigned num_unsaved_files,
-                                 struct CXUnsavedFile *unsaved_files) {
+                                 struct CXUnsavedFile *unsaved_files,
+                                 unsigned options) {
   if (!TU)
     return 1;
   
diff --git a/tools/libclang/libclang.darwin.exports b/tools/libclang/libclang.darwin.exports
index a53595b..671d376 100644
--- a/tools/libclang/libclang.darwin.exports
+++ b/tools/libclang/libclang.darwin.exports
@@ -16,6 +16,7 @@
 _clang_defaultCodeCompleteOptions
 _clang_defaultEditingTranslationUnitOptions
 _clang_defaultDiagnosticDisplayOptions
+_clang_defaultReparseOptions
 _clang_disposeCodeCompleteResults
 _clang_disposeDiagnostic
 _clang_disposeIndex
diff --git a/tools/libclang/libclang.exports b/tools/libclang/libclang.exports
index 70aad53..9b2d0ad 100644
--- a/tools/libclang/libclang.exports
+++ b/tools/libclang/libclang.exports
@@ -16,6 +16,7 @@
 clang_defaultCodeCompleteOptions
 clang_defaultEditingTranslationUnitOptions
 clang_defaultDiagnosticDisplayOptions
+clang_defaultReparseOptions
 clang_disposeCodeCompleteResults
 clang_disposeDiagnostic
 clang_disposeIndex