Fix typos

Change-Id: I2f0e2e45af1aa91cb5d06271e2c6893e5e2c42f5
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/210079
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Tested-by: Jenkins

vcl/qa/cppunit/PDFDocumentTest.cxx

@@ -423,7 +423,7 @@ CPPUNIT_TEST_FIXTURE(PDFDocumentTest, testParseArrayNestedWithNumbers)
         CPPUNIT_ASSERT_EQUAL(size_t(1), pArray3->GetElements().size());
 
         auto pNumber2 = dynamic_cast<vcl::filter::PDFNumberElement*>(pRootArray->GetElement(2));
-        CPPUNIT_ASSERT(pNumber1);
+        CPPUNIT_ASSERT(pNumber2);
         CPPUNIT_ASSERT_DOUBLES_EQUAL(2.0, pNumber2->GetValue(), 1e-4);
     }
 }

vcl/skia/win/gdiimpl.cxx

@@ -325,7 +325,7 @@ sk_sp<SkImage> SkiaCompatibleDC::getAsImageDiff(const SkiaCompatibleDC& white) c
     // most widgets when drawn on transparent background are drawn properly (and the result
     // is in premultiplied alpha format), some such as "Edit" (used by ControlType::Editbox)
     // keep the alpha channel as transparent. Therefore the alpha is actually computed
-    // from the difference in the premultiplied red channels when drawn one black and on white.
+    // from the difference in the premultiplied red channels when drawn on black and on white.
     // Alpha is computed as "alpha = 1.0 - abs(black.red - white.red)".
     // I doubt this can be done using Skia, so do it manually here. Fortunately
     // the bitmaps should be fairly small and are cached.

vcl/source/filter/imet/ios2met.cxx

@@ -1443,7 +1443,7 @@ void OS2METReader::ReadMarker(bool bGivenPos, sal_uInt16 nOrderLen)
                 break;
             }
             case  4:   // SQUARE
-            case  8: { // SOLIDSUARE
+            case  8: { // SOLIDSQUARE
                 tools::Polygon aPoly(4);
                 aPoly.SetPoint(Point(x+4,y+4),0);
                 aPoly.SetPoint(Point(x+4,y-4),1);