gccgo: internal compiler error: in wide_int_to_tree

[dvyukov]

package a
var g = 0%0i/0

go1: internal compiler error: in wide_int_to_tree, at tree.c:1470
0xde5ca3 wide_int_to_tree(tree_node*, generic_wide_int<wide_int_ref_storage<false> > const&)
    ../../gcc/tree.c:1470
0xde6dfd double_int_to_tree(tree_node*, double_int)
    ../../gcc/tree.c:1302
0x6070ca Gcc_backend::integer_constant_expression(Btype*, __mpz_struct*)
    ../../gcc/go/go-gcc.cc:1232
0x5eb163 Binary_expression::do_get_backend(Translate_context*)
    ../../gcc/go/gofrontend/expressions.cc:5724
0x5f0d56 Type_conversion_expression::do_get_backend(Translate_context*)
    ../../gcc/go/gofrontend/expressions.cc:3256
0x614758 Variable::get_init(Gogo*, Named_object*)
    ../../gcc/go/gofrontend/gogo.cc:6358
0x627336 Gogo::write_globals()
    ../../gcc/go/gofrontend/gogo.cc:1383

gcc version 6.0.0 2015070 (experimental) (GCC)

[dvyukov]

@paranoiacblack

[paranoiacblack]

This no longer crashes; it was likely fixed by the resolution of #11572.