Recognize CompoundLiteralExpr's as valid lvalue's.

Also updated a FIXME in Sema::CheckInitializer()...



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44602 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/AST/Expr.cpp b/AST/Expr.cpp
index 76b2d85..545ebd8 100644
--- a/AST/Expr.cpp
+++ b/AST/Expr.cpp
@@ -334,6 +334,8 @@
     break;
   case ParenExprClass: // C99 6.5.1p5
     return cast<ParenExpr>(this)->getSubExpr()->isLvalue();
+  case CompoundLiteralExprClass: // C99 6.5.2.5p5
+    return LV_Valid;
   case OCUVectorElementExprClass:
     if (cast<OCUVectorElementExpr>(this)->containsDuplicateElements())
       return LV_DuplicateVectorComponents;