Format analyzer, analysis_server, analyzer_plugin, front_end and kernel with the latest dartfmt.

pkg/kernel/test/reify/kernel_chain.dart

Index: pkg/kernel/test/reify/kernel_chain.dart
diff --git a/pkg/kernel/test/reify/kernel_chain.dart b/pkg/kernel/test/reify/kernel_chain.dart
index da79e75dcbe68cb433085d0c5fa40325f153b798..1d85c42e3c853263055296383081160e2a16dba4 100644
--- a/pkg/kernel/test/reify/kernel_chain.dart
+++ b/pkg/kernel/test/reify/kernel_chain.dart
@@ -96,9 +96,7 @@ class MatchExpectation extends Step<Program, Program, ChainContext> {
       });
       return pass(program);
     } else {
-      return fail(
-          program,
-          """
+      return fail(program, """
 Please create file ${expectedFile.path} with this content:
 $buffer""");
     }