optimize.c (struct inline_data): Moved to ../tree-inline.c.

* optimize.c (struct inline_data): Moved to ../tree-inline.c.
(INSNS_PER_STMT): Likewise.
(remap_decl, remap_block, copy_scopy_stmt, copy_body_r): Likewise.
(copy_body, initialize_inlined_parameters): Likewise.
(declare_return_variable, inlinable_function_p): Likewise.
(expand_call_inline, expand_calls_inline): Likewise.
(optimize_inline_calls, clone_body): Likewise.
* tree.c (walk_tree): Moved to ../tree-inline.c.
(walk_tree_without_duplicates): Likewise.
(copy_tree_r, remap_save_expr): Likewise.

From-SVN: r46022