Squiz/ScopeKeywordSpacing: move parse error test to separate file

Done in a way to maintain the error line numbers for the rest of the file.

Author: jrfnl

src/Standards/Squiz/Tests/WhiteSpace/ScopeKeywordSpacingUnitTest.1.inc

@@ -77,10 +77,10 @@ class MyOtherClass
         $varQ = 'string',
         $varR = 123;
 
-    // Intentionally missing a semicolon for testing.
     public
         $varS,
-        $varT
+        $varT,
+        $varU;
 }
 
 // Issue #3188 - static as return type.

src/Standards/Squiz/Tests/WhiteSpace/ScopeKeywordSpacingUnitTest.1.inc.fixed

@@ -72,10 +72,10 @@ class MyOtherClass
         $varQ = 'string',
         $varR = 123;
 
-    // Intentionally missing a semicolon for testing.
     public
         $varS,
-        $varT
+        $varT,
+        $varU;
 }
 
 // Issue #3188 - static as return type.

src/Standards/Squiz/Tests/WhiteSpace/ScopeKeywordSpacingUnitTest.4.inc

@@ -0,0 +1,11 @@
+<?php
+
+// Intentional parse error.
+// Testing handling of multi-property statements during live coding (missing semicolon after statement).
+// This must be the only test in this file.
+class MyOtherClass
+{
+    public
+        $varS,
+        $varT
+}