Update emitter.dart (#429)

* Update emitter.dart

Add a newline after lambdas.

* Rev version

* Fix typo

Author: mosuem

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 4.7.0
+
+* Add a newline after lambdas.
+
 ## 4.6.0
 
 * Add support for named arguments in `enum` classes

lib/src/emitter.dart

@@ -164,7 +164,7 @@ class DartEmitter extends Object
     for (var m in spec.methods) {
       visitMethod(m, out);
       if (_isLambdaMethod(m)) {
-        out.write(';');
+        out.writeln(';');
       }
       out.writeln();
     }

pubspec.yaml

@@ -1,5 +1,5 @@
 name: code_builder
-version: 4.6.0
+version: 4.7.0
 description: >-
   A fluent, builder-based library for generating valid Dart code
 repository: https://github.com/dart-lang/code_builder