typeck.c (build_compound_expr): If RHS is a TARGET_EXPR, put the compound expr inside the target's initializer.

cp:
	* typeck.c (build_compound_expr): If RHS is a TARGET_EXPR, put the
	compound expr inside the target's initializer.
testsuite:
	* g++.dg/opt/tmp1.C: New test.

From-SVN: r70042