Index: lib/IR/DIBuilder.cpp
===================================================================
--- lib/IR/DIBuilder.cpp
+++ lib/IR/DIBuilder.cpp
@@ -879,8 +879,7 @@
   return DIBasicType();
 }
 
-/// createForwardDecl - Create a temporary forward-declared type that
-/// can be RAUW'd if the full type is seen.
+/// createForwardDecl - Create a permanent forward-declared type.
 DICompositeType
 DIBuilder::createForwardDecl(unsigned Tag, StringRef Name, DIDescriptor Scope,
                              DIFile F, unsigned Line, unsigned RuntimeLang,
@@ -914,7 +913,7 @@
   return RetTy;
 }
 
-/// createForwardDecl - Create a temporary forward-declared type that
+/// createReplaceableForwardDecl - Create a temporary forward-declared type that
 /// can be RAUW'd if the full type is seen.
 DICompositeType DIBuilder::createReplaceableForwardDecl(
     unsigned Tag, StringRef Name, DIDescriptor Scope, DIFile F, unsigned Line,