C++ casts, (static_cast. dynamic_cast, etc.) can have postfix-expression pieces.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54850 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseExpr.cpp b/lib/Parse/ParseExpr.cpp
index c885619..4b45cb7 100644
--- a/lib/Parse/ParseExpr.cpp
+++ b/lib/Parse/ParseExpr.cpp
@@ -538,7 +538,9 @@
   case tok::kw_dynamic_cast:
   case tok::kw_reinterpret_cast:
   case tok::kw_static_cast:
-    return ParseCXXCasts();
+    Res = ParseCXXCasts();
+    // These can be followed by postfix-expr pieces.
+    return ParsePostfixExpressionSuffix(Res);
   case tok::kw_this:
     Res = ParseCXXThis();
     // This can be followed by postfix-expr pieces.
diff --git a/test/Parser/cxx-casting.cpp b/test/Parser/cxx-casting.cpp
index 1e06e98..4b11dc8 100644
--- a/test/Parser/cxx-casting.cpp
+++ b/test/Parser/cxx-casting.cpp
@@ -29,3 +29,8 @@
 {
   return static_cast<double>(i);
 }
+
+char postfix_expr_test()
+{
+  return reinterpret_cast<char*>(0xdeadbeef)[0];
+}
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