Formatter: reduce spec's requires (#4188)

makenowjust · Martin Verzilli · commit 65a3f5abd843 · 2017-04-23T20:43:58.000-03:00
`./bin/crystal run ./spec/compiler/formatter/formatter_spec.cr` is
7.5x faster than old.
diff --git a/spec/compiler/formatter/formatter_spec.cr b/spec/compiler/formatter/formatter_spec.cr
@@ -1,4 +1,5 @@
-require "../../spec_helper"
+require "spec"
+require "../../../src/compiler/crystal/formatter"
 
 private def assert_format(input, output = input, strict = false, file = __FILE__, line = __LINE__)
   it "formats #{input.inspect}", file, line do
