Jason Merrill 9f428ffbd4 c++: modules, clones, and overload resolution
21_strings/basic_string_view/cons/wchar_t/3.cc was failing with import std
because as in the reduced testcase, the module includes an instantiation of
the template constructor for <const char *, const char *>, and importing the
module was wrongly adding that instantiation to CLASSTYPE_MEMBER_VEC, so it
became part of the overload set independent of its template.
tsubst_function_decl doesn't add to CLASSTYPE_MEMBER_VEC, and importing
should work the same.

gcc/cp/ChangeLog:

	* module.cc (trees_in::decl_value): Don't add an instantiation to
	CLASSTYPE_MEMBER_VEC.

gcc/testsuite/ChangeLog:

	* g++.dg/modules/clone-5_a.C: New test.
	* g++.dg/modules/clone-5_b.C: New test.
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This directory contains the GNU Compiler Collection (GCC).

The GNU Compiler Collection is free software.  See the files whose
names start with COPYING for copying permission.  The manuals, and
some of the runtime libraries, are under different terms; see the
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The directory INSTALL contains copies of the installation information
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See the file gcc/doc/gcc.texi (together with other files that it
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See http://gcc.gnu.org/bugs/ for how to report bugs usefully.

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