skip shorter entities too

#WEB-17454 fixed

spellchecker/src/com/intellij/spellchecker/inspections/WordSplitter.java

@@ -32,7 +32,7 @@ public class WordSplitter extends BaseSplitter {
   }
 
   @NonNls
-  private static final Pattern SPECIAL = Pattern.compile("&\\p{Alnum}{4};?|#\\p{Alnum}{3,6}|0x\\p{Alnum}?");
+  private static final Pattern SPECIAL = Pattern.compile("&\\p{Alnum}{2};?|#\\p{Alnum}{3,6}|0x\\p{Alnum}?");
 
   @Override
   public void split(@Nullable String text, @NotNull TextRange range, Consumer<TextRange> consumer) {

spellchecker/testSrc/com/intellij/spellchecker/inspector/SplitterTest.java

@@ -227,7 +227,7 @@ public class SplitterTest {
 
   @Test
   public void testSpecial() {
-    String text = "test   test";
+    String text = "test   test ⊃ >";
     correctListToCheck(PlainTextSplitter.getInstance(), text, "test", "test");
   }