Change tests to use channel args instead of fake_resolver query args.

Makefile

test/core/client_channel/lb_policies_test.c

test/core/end2end/connection_refused_test.c

test/core/end2end/end2end_tests.h

test/core/end2end/fake_resolver.c

test/core/end2end/fixtures/h2_census.c

test/core/end2end/fixtures/h2_compress.c

test/core/end2end/fixtures/h2_fake_resolver.c

test/core/end2end/fixtures/h2_fakesec.c

test/core/end2end/fixtures/h2_fd.c

test/core/end2end/fixtures/h2_full+pipe.c

test/core/end2end/fixtures/h2_full+trace.c

test/core/end2end/fixtures/h2_full.c

test/core/end2end/fixtures/h2_http_proxy.c

test/core/end2end/fixtures/h2_load_reporting.c

test/core/end2end/fixtures/h2_oauth2.c

test/core/end2end/fixtures/h2_proxy.c

test/core/end2end/fixtures/h2_sockpair+trace.c

test/core/end2end/fixtures/h2_sockpair.c

test/core/end2end/fixtures/h2_sockpair_1byte.c