PSR2/ClassDeclaration: add tests covering the CloseBraceSameLine error

Previously, there were no dedicated tests for the `CloseBraceSameLine` error.

Author: jrfnl

src/Standards/PSR2/Tests/Classes/ClassDeclarationUnitTest.inc

@@ -316,3 +316,18 @@ class ClassWithMultiLineImplementsAndCommentOnSameLineAsInterfaceName implements
     /* Comment. */ AnotherInterface
 {
 }
+
+// Verify the `CloseBraceSameLine` error code is thrown when expected.
+class ClassBraceNotOnLineByItselfError
+{
+    public $prop;
+} $foo = new ClassBraceNotOnLineByItselfError;
+
+interface ClassBraceNotOnLineByItselfTrailingCommentIsAllowed
+{
+    public function myMethod();
+} //end interface -- this comment is allowed.
+
+trait ClassBraceNotOnLineByItselfTrailingAnnotationIsAllowed
+{
+} // phpcs:ignore Stnd.Cat.Sniff -- this comment is also allowed.

src/Standards/PSR2/Tests/Classes/ClassDeclarationUnitTest.inc.fixed

@@ -305,3 +305,18 @@ class ClassWithMultiLineImplementsAndCommentOnSameLineAsInterfaceName implements
     AnotherInterface
 {
 }
+
+// Verify the `CloseBraceSameLine` error code is thrown when expected.
+class ClassBraceNotOnLineByItselfError
+{
+    public $prop;
+} $foo = new ClassBraceNotOnLineByItselfError;
+
+interface ClassBraceNotOnLineByItselfTrailingCommentIsAllowed
+{
+    public function myMethod();
+} //end interface -- this comment is allowed.
+
+trait ClassBraceNotOnLineByItselfTrailingAnnotationIsAllowed
+{
+} // phpcs:ignore Stnd.Cat.Sniff -- this comment is also allowed.

src/Standards/PSR2/Tests/Classes/ClassDeclarationUnitTest.php

@@ -78,6 +78,7 @@ public function getErrorList()
             282 => 1,
             310 => 1,
             316 => 1,
+            324 => 1,
         ];
 
     }//end getErrorList()