Switch NamespaceDecl from its own hand-rolled redeclaration chain over
to Redeclarable<NamespaceDecl>, so that we benefit from the improveed
redeclaration deserialization and merging logic provided by
Redeclarable<T>. Otherwise, no functionality change.
As a drive-by fix, collapse the "inline" bit into the low bit of the
original namespace/anonymous namespace, saving 8 bytes per
NamespaceDecl on x86_64.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147729 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Modules/namespaces.cpp b/test/Modules/namespaces.cpp
new file mode 100644
index 0000000..75557ba
--- /dev/null
+++ b/test/Modules/namespaces.cpp
@@ -0,0 +1,15 @@
+// RUN: rm -rf %t
+// RUN: %clang_cc1 -x objective-c++ -fmodules -fmodule-cache-path %t -I %S/Inputs %s -verify
+
+@import namespaces_left;
+@import namespaces_right;
+
+void test() {
+ int &ir1 = N1::f(1);
+ int &ir2 = N2::f(1);
+ int &ir3 = N3::f(1);
+ float &fr1 = N1::f(1.0f);
+ float &fr2 = N2::f(1.0f);
+ double &dr1 = N2::f(1.0);
+ double &dr2 = N3::f(1.0);
+}