Don't generate superfluous and ambiguous built-in candidates for multi-level array subscript and arithmetic. Fixes PR5546.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89242 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/overloaded-operator.cpp b/test/SemaCXX/overloaded-operator.cpp
index 7762667..5fdbeeb 100644
--- a/test/SemaCXX/overloaded-operator.cpp
+++ b/test/SemaCXX/overloaded-operator.cpp
@@ -286,3 +286,13 @@
   }
   int usepri[LastReg + 1];
 };
+
+// PR5546: Don't generate incorrect and ambiguous overloads for multi-level
+// arrays.
+namespace pr5546
+{
+  enum { X };
+  extern const char *const sMoveCommands[][2][2];
+  const char* a() { return sMoveCommands[X][0][0]; }
+  const char* b() { return (*(sMoveCommands+X))[0][0]; }
+}