Squiz/ScopeKeywordSpacing: move some method tests into a class

... as otherwise the test methods would be _unintentional_ parse errors.

Includes making the method names unique.

Author: jrfnl

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

@@ -81,23 +81,23 @@ class MyOtherClass
         $varS,
         $varT,
         $varU;
-}
 
-// Issue #3188 - static as return type.
-public static function fCreate($attributes = []): static
-{
-    return static::factory()->create($attributes);
-}
+    // Issue #3188 - static as return type.
+    public static function staticAsReturnType($attributes = []): static
+    {
+        return static::factory()->create($attributes);
+    }
 
-public static function fCreate($attributes = []): ?static
-{
-    return static::factory()->create($attributes);
-}
+    public static function nullableStaticReturnType($attributes = []): ?static
+    {
+        return static::factory()->create($attributes);
+    }
 
-// Also account for static used within union types.
-public function staticLast($attributes = []): object|static {}
-public function staticMiddle(): string|static|object {}
-public function staticFirst(): static|object {}
+    // Also account for static used within union types.
+    public function staticLast($attributes = []): object|static {}
+    public function staticMiddle(): string|static|object {}
+    public function staticFirst(): static|object {}
+}
 
 // Ensure that static as a scope keyword when preceeded by a colon which is not for a type declaration is still handled.
 $callback = $cond ? get_fn_name() : static  function ($a) { return $a * 10; };

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

@@ -76,23 +76,23 @@ class MyOtherClass
         $varS,
         $varT,
         $varU;
-}
 
-// Issue #3188 - static as return type.
-public static function fCreate($attributes = []): static
-{
-    return static::factory()->create($attributes);
-}
+    // Issue #3188 - static as return type.
+    public static function staticAsReturnType($attributes = []): static
+    {
+        return static::factory()->create($attributes);
+    }
 
-public static function fCreate($attributes = []): ?static
-{
-    return static::factory()->create($attributes);
-}
+    public static function nullableStaticReturnType($attributes = []): ?static
+    {
+        return static::factory()->create($attributes);
+    }
 
-// Also account for static used within union types.
-public function staticLast($attributes = []): object|static {}
-public function staticMiddle(): string|static|object {}
-public function staticFirst(): static|object {}
+    // Also account for static used within union types.
+    public function staticLast($attributes = []): object|static {}
+    public function staticMiddle(): string|static|object {}
+    public function staticFirst(): static|object {}
+}
 
 // Ensure that static as a scope keyword when preceeded by a colon which is not for a type declaration is still handled.
 $callback = $cond ? get_fn_name() : static function ($a) { return $a * 10; };