Latest version of buck is faster than the prior version used by
Gerrit. No-op updates when loading a debug version of the UI now take
only 1.804s on my laptop (previously 7s) and a draft UI compile is
only 24.659s (previously 39s).
The slow acceptance tests must now be excluded with `--exclude slow`.
Buck changed the meaning of the -e option to be --emulator, which is
unfortunately useful only for Android application developers.
genrule() now needs to use $(exe) to reference the binary to run,
offers $(location) to make it easier to find files in the build tree.
The empty srcs array is no longer required for genrule(). Buck has
determined it is sufficiently powerful with $(location) and deps that
requiring srcs is unnecessary.
Supporting .src.zip files in the srcs array of java_library() means
Gerrit no longer needs to run a separate genrule() to extract files
produced by ANTLR, or call javac inside of the BuckPrologCompiler
support glue.
Change-Id: Ib03042921a081b867a7aad0423bd45523e42917a
11d27c8ee8