Implement implicit conversions for pointers-to-member.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62971 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/member-pointer.cpp b/test/SemaCXX/member-pointer.cpp
index 2568cb5..4aa3098 100644
--- a/test/SemaCXX/member-pointer.cpp
+++ b/test/SemaCXX/member-pointer.cpp
@@ -3,6 +3,7 @@
 struct A {};
 enum B { Dummy };
 namespace C {}
+struct D : A {};
 
 int A::*pdi1;
 int (::A::*pdi2);
@@ -16,4 +17,16 @@
 void f() {
   // This requires tentative parsing.
   int (A::*pf)(int, int);
+
+  // Implicit conversion to bool.
+  bool b = pdi1;
+  b = pfi;
+
+  // Conversion from null pointer constant.
+  pf = 0;
+  pf = __null;
+
+  // Conversion to member of derived.
+  int D::*pdid = pdi1;
+  pdid = pdi2;
 }
diff --git a/test/SemaCXX/qualification-conversion.cpp b/test/SemaCXX/qualification-conversion.cpp
index d467d31..1b818c3 100644
--- a/test/SemaCXX/qualification-conversion.cpp
+++ b/test/SemaCXX/qualification-conversion.cpp
@@ -9,3 +9,15 @@
   quals2(pp);
   quals3(ppp); // expected-error {{ incompatible type passing 'int ***', expected 'int const **const *' }}
 }
+
+struct A {};
+void mquals1(int const A::*p);
+void mquals2(int const A::* const A::*pp);
+void mquals3(int const A::* A::* const A::*ppp);
+
+void test_mquals(int A::*p, int A::* A::*pp, int A::* A::* A::*ppp) {
+  int const A::* const A::* pp2 = pp;
+  mquals1(p);
+  mquals2(pp);
+  mquals3(ppp); // expected-error {{ incompatible type passing 'int struct A::*struct A::*struct A::*', expected 'int const struct A::*struct A::*const struct A::*' }}
+}