Add back use statements

Author: swissspidy

tests/Test_Arguments.php

@@ -1,5 +1,7 @@
 <?php
 
+use WP_CLI\Tests\TestCase;
+
 /**
  * Class Test_Arguments
  * @todo add more tests to increase coverage

tests/Test_Cli.php

@@ -1,6 +1,7 @@
 <?php
 
 use cli\Colors;
+use WP_CLI\Tests\TestCase;
 
 class Test_Cli extends TestCase {
 

tests/Test_Colors.php

@@ -1,6 +1,7 @@
 <?php
 
 use cli\Colors;
+use WP_CLI\Tests\TestCase;
 
 class Test_Colors extends TestCase {
 

tests/Test_Shell.php

@@ -1,5 +1,7 @@
 <?php
 
+use WP_CLI\Tests\TestCase;
+
 /**
  * Class Test_Shell
  */

tests/Test_Table.php

@@ -3,6 +3,7 @@
 use cli\Colors;
 use cli\Table;
 use cli\Table\Ascii;
+use WP_CLI\Tests\TestCase;
 
 /**
  * Tests for cli\Table

tests/Test_Table_Ascii.php

@@ -4,6 +4,7 @@
 use cli\Streams;
 use cli\Table;
 use cli\table\Ascii;
+use WP_CLI\Tests\TestCase;
 
 /**
  * Class Test_Table_Ascii