analyzer: fix uses of alloca in testsuite
gcc/testsuite/ChangeLog:
* gcc.dg/analyzer/call-summaries-2.c: Add
dg-require-effective-target alloca.
* gcc.dg/analyzer/imprecise-floating-point-1.c: Likewise.
* gcc.dg/analyzer/infinite-recursion-alloca.c: Likewise.
* gcc.dg/analyzer/malloc-callbacks.c: Likewise.
* gcc.dg/analyzer/out-of-bounds-5.c: Likewise. Remove includes
of <stdio.h> and <alloca.h>. Use "__builtin_free" rather than
"free", to match uses of "__builtin_malloc".
* gcc.dg/analyzer/putenv-1.c: Add dg-require-effective-target
alloca.
* gcc.dg/analyzer/write-to-string-literal-5.c: Likewise.
Signed-off-by: David Malcolm <dmalcolm@redhat.com>