ASAN: emit line information of stack variables.

ASAN: emit line information of stack variables.

2018-10-09  Martin Liska  <mliska@suse.cz>

	* asan.c (asan_emit_stack_protection): If a stack variable
	is located in a same file as current function, then emit
	line info into variable definition string.
2018-10-09  Martin Liska  <mliska@suse.cz>

	* c-c++-common/asan/pr64820.c: Add line number to scanned
	pattern.
	* c-c++-common/asan/use-after-return-1.c: Likewise.
	* g++.dg/asan/function-argument-1.C (main): Likewise.
	* g++.dg/asan/function-argument-2.C (main): Likewise.
	* g++.dg/asan/function-argument-3.C (main): Likewise.
	* g++.dg/asan/use-after-scope-1.C (main): Likewise.
	* g++.dg/asan/use-after-scope-2.C (main): Likewise.
	* g++.dg/asan/use-after-scope-types-1.C (main): Likewise.
	* g++.dg/asan/use-after-scope-types-2.C (main): Likewise.
	* g++.dg/asan/use-after-scope-types-3.C (main): Likewise.
	* g++.dg/asan/use-after-scope-types-4.C (main): Likewise.
	* g++.dg/asan/use-after-scope-types-5.C (main): Likewise.
	* gcc.dg/asan/pr78541.c (main): Likewise.
	* gcc.dg/asan/use-after-scope-1.c (main): Likewise.
	* gcc.dg/asan/use-after-scope-10.c (main): Likewise.
	* gcc.dg/asan/use-after-scope-2.c (main): Likewise.
	* gcc.dg/asan/use-after-scope-3.c (main): Likewise.
	* gcc.dg/asan/use-after-scope-5.c (main): Likewise.
	* gcc.dg/asan/use-after-scope-9.c (main): Likewise.

(backported 1db5adee4f01d05f3f1b9c09c04b9b772ace6859 without
  * g++.dg/asan/function-argument-1.C
  * g++.dg/asan/function-argument-2.C
  * g++.dg/asan/function-argument-3.C
  * gcc.dg/asan/pr78541.c
  * gcc.dg/asan/use-after-scope-10.c
test)

Change-Id: I03162f42275c2f3c0b92c6bfb397dbc91229a917
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@264951 138bc75d-0d04-0410-961f-82ee72b054a4