PR testsuite/56053
	* c-c++-common/asan/heap-overflow-1.c: Don't include stdlib.h and
	string.h.  Provide memset, malloc and free prototypes, adjust line
	numbers in dg-output.
	* c-c++-common/asan/stack-overflow-1.c: Don't include string.h.
	Provide memset prototype and adjust line numbers in dg-output.
	* c-c++-common/asan/global-overflow-1.c: Likewise.

From-SVN: r195505