Documentation cleanup:
* Escaped Objective-C @keywords in Doxygen comments;
* Documented more accurate \params;
* Exposed some more summaries using \brief.

llvm-svn: 158559
diff --git a/clang/lib/CodeGen/CGCleanup.h b/clang/lib/CodeGen/CGCleanup.h
index 7726e44..d8dbe41 100644
--- a/clang/lib/CodeGen/CGCleanup.h
+++ b/clang/lib/CodeGen/CGCleanup.h
@@ -131,7 +131,7 @@
 /// A scope which attempts to handle some, possibly all, types of
 /// exceptions.
 ///
-/// Objective C @finally blocks are represented using a cleanup scope
+/// Objective C \@finally blocks are represented using a cleanup scope
 /// after the catch scope.
 class EHCatchScope : public EHScope {
   // In effect, we have a flexible array member