K 10
svn:author
V 8
vangyzen
K 8
svn:date
V 27
2015-12-19T02:47:05.845649Z
K 7
svn:log
V 498
MFC r289837

resolver: abuse _res a little less

In the past, _res was a global variable.  Now, it's multiple function calls.
Several functions in the resolver use _res multiple times and therefore
call the function(s) far more than necessary.

Fix those callers to store the result of _res in a local variable.

Add __noinline to the definition of res_init() to avoid the code bloat
that these changes would have otherwise incurred.  Thanks to jilles
for noticing this.

Sponsored by:   Dell Inc.

END