Fix a trivial typo, add a FIXME to have more test coverage for VTableBuilder

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@185159 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/VTableBuilder.cpp b/lib/AST/VTableBuilder.cpp
index 74669d5..90087b8 100644
--- a/lib/AST/VTableBuilder.cpp
+++ b/lib/AST/VTableBuilder.cpp
@@ -1914,6 +1914,8 @@
 
 /// dumpLayout - Dump the vtable layout.
 void VTableBuilder::dumpLayout(raw_ostream& Out) {
+  // FIXME: write more tests that actually use the dumpLayout output to prevent
+  // VTableBuilder regressions.
 
   if (isBuildingConstructorVTable()) {
     Out << "Construction vtable for ('";
@@ -2166,7 +2168,7 @@
         
         // If this function pointer has a return pointer adjustment, dump it.
         if (!Thunk.Return.isEmpty()) {
-          Out << "return adjustment: " << Thunk.This.NonVirtual;
+          Out << "return adjustment: " << Thunk.Return.NonVirtual;
           Out << " non-virtual";
           if (Thunk.Return.VBaseOffsetOffset) {
             Out << ", " << Thunk.Return.VBaseOffsetOffset;