Do not reset TUScope when we are in incremental processing mode.

Patch by Axel Naumann!

Reviewed by Richard Smith and me.

llvm-svn: 284372

clang/lib/Sema/Sema.cpp

@@ -708,6 +708,7 @@ void Sema::ActOnEndOfTranslationUnit() {
 
   if (TUKind == TU_Prefix) {
     // Translation unit prefixes don't need any of the checking below.
+    if (!PP.isIncrementalProcessingEnabled())
       TUScope = nullptr;
     return;
   }
@@ -908,6 +909,7 @@ void Sema::ActOnEndOfTranslationUnit() {
   assert(ParsingInitForAutoVars.empty() &&
          "Didn't unmark var as having its initializer parsed");
 
+  if (!PP.isIncrementalProcessingEnabled())
     TUScope = nullptr;
 }