When we're emitting a diagnostic with a source location in an imported
module, provide a module import stack similar to what we would get for
an include stack, e.g.,
In module 'DependsOnModule' imported from build-fail-notes.m:4:
In module 'Module' imported from DependsOnModule.framework/Headers/DependsOnModule.h:1:
Inputs/Module.framework/Headers/Module.h:15:12: note: previous definition is here
@interface Module
<rdar://problem/12696425>
llvm-svn: 169042
diff --git a/clang/test/Modules/build-fail-notes.m b/clang/test/Modules/build-fail-notes.m
index fe55223..4c5d5f5 100644
--- a/clang/test/Modules/build-fail-notes.m
+++ b/clang/test/Modules/build-fail-notes.m
@@ -10,3 +10,10 @@
// CHECK: fatal error: could not build module 'Module'
// CHECK: fatal error: could not build module 'DependsOnModule'
// CHECK-NOT: error:
+
+// RUN: %clang_cc1 -fmodule-cache-path %t -fmodules -F %S/Inputs %s -fdiagnostics-show-note-include-stack 2>&1 | FileCheck -check-prefix=CHECK-REDEF %s
+extern int Module;
+
+// CHECK-REDEF: In module 'DependsOnModule' imported from
+// CHECK-REDEF: In module 'Module' imported from
+// CHECK-REDEF: Module.h:15:12: note: previous definition is here