re PR c++/33407 (C++ operator new and new expression do not change dynamic type)

re PR c++/33407 (C++ operator new and new expression do not change dynamic type)

	PR c++/33407
./:	* tree.h (DECL_IS_OPERATOR_NEW): Define.
	(struct tree_function_decl): Add new field operator_new_flag.
	* tree-inline.c (expand_call_inline): When inlining a call to
	operator new, force the return value to go into a variable, and
	set DECL_NO_TBAA_P on that variable.
	* c-decl.c (merge_decls): Merge DECL_IS_OPERATOR_NEW flag.
cp/:
	* decl.c (duplicate_decls): Copy DECL_IS_OPERATOR_NEW flag.
	(grok_op_properties): For NEW_EXPR and VEC_NEW_EXPR set
	DECL_IS_OPERATOR_NEW flag.
testsuite/:
	* g++.dg/init/new26.C: New test.

From-SVN: r131629