Scrutinizer Samples/Tests (#3733)

* Scrutinizer Samples/Tests

A great many statements recently flagged. Attend to those in Samples and Tests.

* Missed a Few

* Update XlsTest.php

tests/PhpSpreadsheetTests/Writer/Html/MemoryDrawingOffsetTest.php

@@ -24,7 +24,7 @@ class MemoryDrawingOffsetTest extends TestCase
         $image = imagecreatefromstring($image);
         self::assertNotFalse($image, 'unable to create image from string');
         $drawing = new MemoryDrawing();
-        $drawing->setImageResource($image)
+        $drawing->setImageResource(/** @scrutinizer ignore-type */ $image)
             ->setResizeProportional(false) //是否保持比例
             ->setWidthAndHeight($w, $h) //图片宽高,原始尺寸 100*100
             ->setOffsetX($x)

tests/PhpSpreadsheetTests/Writer/Xlsx/DrawingsTest.php

@@ -588,7 +588,7 @@ class DrawingsTest extends AbstractFunctional
                 $drawing->setCoordinates2('D' . ((4 * $i) + 4));
                 $drawing->setEditAs($mode);
 
-                $drawing->setImageResource($gdImage);
+                $drawing->setImageResource(/** @scrutinizer ignore-type */ $gdImage);
                 $drawing->setRenderingFunction(
                     MemoryDrawing::RENDERING_JPEG
                 );

tests/PhpSpreadsheetTests/Writer/Xlsx/MemoryDrawingTest.php

@@ -56,7 +56,7 @@ class MemoryDrawingTest extends AbstractFunctional
                 if ($gdImage === false) {
                     self::fail('unexpected failure in imagecreatefromstring');
                 } else {
-                    self::assertTrue(self::checkTransparent($gdImage));
+                    self::assertTrue(self::checkTransparent(/** @scrutinizer ignore-type */ $gdImage));
                 }
             } else {
                 self::fail('Unexpected drawing not in Drawing class');