Qualified lookup through using declarations. Diagnose a new type of ambiguity.

Split the various ambiguous result enumerators into their own enum.  Tests
for most of C++ [namespace.qual].



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83700 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 35 insertions, 0 deletions

diff --git a/test/CXX/basic/basic.lookup/basic.lookup.qual/namespace.qual/p5.cpp b/test/CXX/basic/basic.lookup/basic.lookup.qual/namespace.qual/p5.cpp
new file mode 100644
index 0000000000..78af521c91
--- /dev/null
+++ b/test/CXX/basic/basic.lookup/basic.lookup.qual/namespace.qual/p5.cpp
@@ -0,0 +1,35 @@
+// RUN: clang-cc -fsyntax-only -verify %s
+
+namespace A {
+  struct x {}; // expected-note {{candidate found by name lookup is 'A::x'}}
+  int x; // expected-note {{candidate found by name lookup is 'A::x'}}
+
+  struct y {}; // expected-note {{type declaration hidden}}
+
+  struct z;
+  void z(float);
+}
+
+namespace B {
+  struct x {}; // expected-note {{candidate found by name lookup is 'B::x'}}
+  float x; // expected-note {{candidate found by name lookup is 'B::x'}}
+
+  float y; // expected-note {{declaration hides type}}
+
+  void z(int);
+}
+
+namespace AB {
+  using namespace A;
+  using namespace B;
+}
+
+void test() {
+  struct AB::x foo; // expected-error {{reference to 'x' is ambiguous}}
+  int i = AB::x; // expected-error {{reference to 'x' is ambiguous}}
+
+  struct AB::y bar;
+  float f = AB::y; // expected-error {{a type named 'y' is hidden by a declaration in a different namespace}}
+  AB::z(i);
+  AB::z(f);
+}