re PR tree-optimization/89730 (-flive-patching=inline-only-static should grant always_inline attribute for extern function)

2019-04-03  qing zhao  <qing.zhao@oracle.com>

	PR tree-optimization/89730
	* ipa-inline.c (can_inline_edge_p): Delete the checking for
	-flive-patching=inline-only-static.
	(can_inline_edge_by_limits_p): Add the checking for 
	-flive-patching=inline-only-static and grant always_inline
	even when -flive-patching=inline-only-static is specified. 

	* gcc.dg/live-patching-4.c: New test.

From-SVN: r270134