Parse: Don't crash when trailing return type is missing

Sema::CheckParmsForFunctionDef can't cope with a null TypeSourceInfo.
Don't let the AST contain the malformed lambda.

This fixes PR22122.

llvm-svn: 225505

1 files changed, 7 insertions, 0 deletions

diff --git a/clang/test/Parser/cxx0x-lambda-expressions.cpp b/clang/test/Parser/cxx0x-lambda-expressions.cpp
index 8cfe7f3b02d..4bcc60c73c1 100644
--- a/clang/test/Parser/cxx0x-lambda-expressions.cpp
+++ b/clang/test/Parser/cxx0x-lambda-expressions.cpp
@@ -91,3 +91,10 @@ class C {
       __attribute__((noreturn)) { while(1); }; // expected-error {{expected body of lambda expression}}
   }
 };
+
+template <typename>
+void PR22122() {
+  [](int) -> {}; // expected-error {{expected a type}}
+}
+
+template void PR22122<int>();