re PR c++/11131 (Unrelated declaration removes inline flag from function)
PR c++/11131
* tree-inline.c (inlinable_function_p): Call the language-specific
hook early.
PR c++/11131
* cp-tree.h (template_for_substitution): Declare.
* decl2.c (mark_used): Use it when figuring out whether or not a
function is inline.
* pt.c (template_for_substitution): Give it external linkage.
* tree.c (cp_cannot_inline_tree_fn): Instantiate as early as
possible.
PR c++/11131
* g++.dg/opt/template1.C: New test.
From-SVN: r67698