re PR c++/11063 (ICE on parsing initialization list of const array member)

PR c++/11063
        * typeck.c (build_modify_expr): Call convert rather than abort.

From-SVN: r72495

gcc/testsuite/g++.dg/ext/complit1.C

@@ -0,0 +1,15 @@
+// PR c++/11063
+
+class Foo
+{
+private:
+  const int val_[2];
+
+public:
+  Foo(int, int);
+};
+
+Foo::Foo(int v0, int v1)
+  : val_((int[]) {v0, v1})
+{
+}