Fix an corner-case assertion introduced by the refactoring in r112258;

when we're taking the address of a unresolvable value, it might be an
implicit member access. Fixes some Boost.Spirit regressions.

llvm-svn: 112487

clang/lib/Sema/SemaExpr.cpp

@@ -1263,6 +1263,8 @@ ExprResult Sema::ActOnIdExpression(Scope *S,
       MightBeImplicitMember = false;
     else if (R.isOverloadedResult())
       MightBeImplicitMember = false;
+    else if (R.isUnresolvableResult())
+      MightBeImplicitMember = true;
     else
       MightBeImplicitMember = isa<FieldDecl>(R.getFoundDecl());
 

clang/test/SemaTemplate/member-access-expr.cpp

@@ -121,3 +121,14 @@ namespace test4 {
     }
   };
 }
+
+namespace test5 {
+  template<typename T>
+  struct X {
+    using T::value;
+
+    T &getValue() {
+      return &value;
+    }
+  };
+}