[xtext][formatter] Added missing author information

Change-Id: I17d7b51e69ae7916a1dc8658c1f970b8ea0bf4a5

plugins/org.eclipse.xtext/src/org/eclipse/xtext/formatting2/package-info.java

@@ -6,7 +6,7 @@
  * semantic model.</p>
  * 
  * <p>This infrastructure is capable of formatting documents based on the node model and based on the serializer's output.
- * The actual formatting is done by constructing a list of text replacements. Applying the text replacement turns the
+ * The actual formatting is done by constructing a list of text replacements. Applying the text replacements turns the
  * unformatted document into a formatted document. Purpose of this infrastructure is to make it convenient for
  * implementers to construct these text replacements.</p>
  * 

tests/org.eclipse.xtext.tests/src/org/eclipse/xtext/formatting2/internal/GenericFormatterTester.xtend

@@ -31,17 +31,27 @@ class GenericFormatterTester {
 	}
 }
 
+/**
+ * @author Moritz Eysholdt - Initial contribution and API
+ */
 class FormatterTesterWithImpl extends FormatterTester {
 	override protected createFormatter(FormatterTestRequest req) {
 		(req as GenericFormatterTestRequest).formatter
 	}
 }
 
+/**
+ * @author Moritz Eysholdt - Initial contribution and API
+ */
 class GenericFormatterTestRequest extends FormatterTestRequest {
 	@Accessors GenericFormatter<? extends EObject> formatter
 }
 
-@Accessors abstract class GenericFormatter<T extends EObject> extends AbstractFormatter2 {
+/**
+ * @author Moritz Eysholdt - Initial contribution and API
+ */
+@Accessors
+abstract class GenericFormatter<T extends EObject> extends AbstractFormatter2 {
 	def dispatch format(EObject obj, IFormattableDocument document) {
 		format(obj as T, request.textRegionAccess, document)
 	}

tests/org.eclipse.xtext.tests/src/org/eclipse/xtext/formatting2/internal/RegionSetTest.xtend

@@ -116,6 +116,9 @@ class RegionSetTest {
 	}
 }
 
+/**
+ * @author Moritz Eysholdt - Initial contribution and API
+ */
 @FinalFieldsConstructor class TestableTextSegmentSet {
 	val List<String> issues = newArrayList
 	val TextSegmentSet<ITextSegment> set