Adding a test for a compiler crash that was fixed in r248069.

Differential Revision: http://reviews.llvm.org/D19048



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@268344 91177308-0d34-0410-b5e6-96231b3b80d8

test/Modules/Inputs/getSourceDescriptor-crash/h1.h

+#pragma once

test/Modules/Inputs/getSourceDescriptor-crash/module.modulemap

+module foo {
+       header "h1.h"
+}

test/Modules/getSourceDescriptor-crash.cpp

+// RUN: %clang_cc1 -I %S/Inputs/getSourceDescriptor-crash -S -emit-llvm -debug-info-kind=limited -fimplicit-module-maps %s -o - | FileCheck %s
+
+#include "h1.h"
+#include "h1.h"
+
+// CHECK: DIImportedEntity
+// CHECK-SAME: entity: ![[ENTITY:[0-9]+]]
+// CHECK: ![[ENTITY]] = !DIModule
+// CHECK-SAME: name: "foo"