Initialize AggValueSlot's flags along all paths, plus minor beautification.
Prospective fix for broken commit in r114045.

llvm-svn: 114060
diff --git a/clang/lib/CodeGen/CGExprAgg.cpp b/clang/lib/CodeGen/CGExprAgg.cpp
index d280711..bd773f2 100644
--- a/clang/lib/CodeGen/CGExprAgg.cpp
+++ b/clang/lib/CodeGen/CGExprAgg.cpp
@@ -39,7 +39,7 @@
     // If the destination slot requires garbage collection, we can't
     // use the real return value slot, because we have to use the GC
     // API.
-    if (Dest.isRequiresGCollection()) return ReturnValueSlot();
+    if (Dest.requiresGCollection()) return ReturnValueSlot();
 
     return ReturnValueSlot(Dest.getAddr(), Dest.isVolatile());
   }
@@ -177,7 +177,7 @@
 /// directly into the return value slot.  If GC does interfere, a final
 /// move will be performed.
 void AggExprEmitter::EmitGCMove(const Expr *E, RValue Src) {
-  if (Dest.isRequiresGCollection()) {
+  if (Dest.requiresGCollection()) {
     std::pair<uint64_t, unsigned> TypeInfo = 
       CGF.getContext().getTypeInfo(E->getType());
     unsigned long size = TypeInfo.first/8;
@@ -210,7 +210,7 @@
     Dest = CGF.CreateAggTemp(E->getType(), "agg.tmp");
   }
 
-  if (Dest.isRequiresGCollection()) {
+  if (Dest.requiresGCollection()) {
     std::pair<uint64_t, unsigned> TypeInfo = 
     CGF.getContext().getTypeInfo(E->getType());
     unsigned long size = TypeInfo.first/8;