treat small as inline tag (WEB-14791)

platform/platform-tests/testData/codeStyle/json/exportToJson.json

@@ -74,6 +74,7 @@
         "s",
         "samp",
         "select",
+        "small",
         "span",
         "strike",
         "strong",

xml/impl/src/com/intellij/psi/formatter/xml/HtmlCodeStyleSettings.java

@@ -64,7 +64,7 @@ public class HtmlCodeStyleSettings extends CustomCodeStyleSettings {
   @Property(externalName = "inline_tags")
   @CommaSeparatedValues
   @NonNls public String HTML_INLINE_ELEMENTS =
-    "a,abbr,acronym,b,basefont,bdo,big,br,cite,cite,code,dfn,em,font,i,img,input,kbd,label,q,s,samp,select,span,strike,strong,sub,sup,textarea,tt,u,var";
+    "a,abbr,acronym,b,basefont,bdo,big,br,cite,cite,code,dfn,em,font,i,img,input,kbd,label,q,s,samp,select,small,span,strike,strong,sub,sup,textarea,tt,u,var";
 
   @Property(externalName = "do_not_break_if_inline_tags")
   @CommaSeparatedValues

xml/tests/src/com/intellij/psi/formatter/HtmlFormatterTest.java

@@ -205,6 +205,10 @@ public class HtmlFormatterTest extends XmlFormatterTestBase {
     doTest();
   }
 
+  public void testSmall() throws Exception {
+    doTest();
+  }
+
   public void testTableformatting() throws Exception {
     doTest();
   }

xml/tests/testData/psi/formatter/html/small.html

@@ -0,0 +1 @@
+<div><small>Hello!</small></div>

xml/tests/testData/psi/formatter/html/small_after.html

@@ -0,0 +1 @@
+<div><small>Hello!</small></div>