PR c++/90947 - Simple lookup table of array of strings is miscompiled

PR c++/90947 - Simple lookup table of array of strings is miscompiled

gcc/cp/ChangeLog:

	PR c++/90947
	* decl.c (reshape_init_array_1): Avoid truncating initializer
	lists containing string literals.

gcc/testsuite/ChangeLog:

	PR c++/90947
	* c-c++-common/array-1.c: New test.
	* g++.dg/abi/mangle73.C: New test.
	* g++.dg/cpp2a/nontype-class23.C: New test.
	* g++.dg/init/array53.C: New test.

gcc/ChangeLog:

	PR c++/90947
	* tree.c (type_initializer_zero_p): Define.
	* tree.h (type_initializer_zero_p): New function.

From-SVN: r273989