ART: Use libbase logging

Move most of our logging infrastructure over to system/core/base.
Retain VLOG.

Using unified Android infrastructure has two main advantages. First,
it reduces the complexity/maintenance burden in ART. Second, it
allows to detach logging for the cases where we do not want or need
a runtime, e.g., dexdump, the disassembler, etc. As a part of the
latter, libbase is also supported for all hosts (including Windows).

From a developer viewpoint, there are minor behavior changes for the
LOG statements (see above), but otherwise usage is the same. Explicit
severity enum items are in the android::base namespace now.

Bug: 31338270
Test: m test-art-host
Change-Id: I5abcb2f45f5b03d49951874c48544f72a283a91b
diff --git a/test/143-string-value/check b/test/143-string-value/check
index 92f6e90..2a3476c 100755
--- a/test/143-string-value/check
+++ b/test/143-string-value/check
@@ -15,6 +15,6 @@
 # limitations under the License.
 
 # Strip error log messages.
-sed -e '/^art E.*\] /d' "$2" > "$2.tmp"
+sed -e '/^dalvikvm\(\|32\|64\) E.*\] /d' "$2" > "$2.tmp"
 
 diff --strip-trailing-cr -q "$1" "$2.tmp" >/dev/null