Removed fixed dependencies

packages/dart_style/test/whitespace/directives.unit

 40 columns                              |
 >>> require at least one newline between directives
 import 'a.dart';import 'b.dart';export 'c.dart';
 <<<
 import 'a.dart';
 import 'b.dart';
 export 'c.dart';
 >>> allow an extra newline between directives
 import 'a.dart';
 
@@ skipping 31 matching lines @@
 part of foo;
 <<<
 part of foo;
 >>> long part of does not wrap
 part of some_very_long_library_name_that_wraps;
 <<<
 part of some_very_long_library_name_that_wraps;
 >>> no spaces between library identifiers
 library    a .  b   . c;
 <<<
-library a.b.c;
+library a.b.c;
+>>> configuration
+import'a'if(b  . c . d)'e';
+<<<
+import 'a' if (b.c.d) 'e';
+>>> configuration
+export'a'if(b  . c=='d'   )'e';
+<<<
+export 'a' if (b.c == 'd') 'e';