add a rule for enums, patch by Zhanyong Wan!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121430 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/CodingStandards.html b/docs/CodingStandards.html
index 4af3c6a..7791e8d 100644
--- a/docs/CodingStandards.html
+++ b/docs/CodingStandards.html
@@ -824,10 +824,12 @@
 should be in camel case (e.g. <tt>TextFileReader</tt>
 and <tt>isLValue()</tt>).  Type names (including classes, structs,
 enums, typedefs, etc) should be nouns and start with an upper-case
-letter (e.g. <tt>TextFileReader</tt>).  Function names should be verb
-phrases (as they represent actions) and start with a lower-case letter
-(e.g. a predicate may be named <tt>isFoo()</tt> or <tt>hasBar()</tt>,
-while the name of a command-like function should be imperative,
+letter (e.g. <tt>TextFileReader</tt>).  An <tt>enum</tt> for all the
+different kinds of something should be named with the <tt>Kind</tt>
+suffix.  Function names should be verb phrases (as they represent
+actions) and start with a lower-case letter (e.g. a predicate may be
+named <tt>isFoo()</tt> or <tt>hasBar()</tt>, while the name of a
+command-like function should be imperative,
 like <tt>openFile()</tt>).</p>
 
 <p>Enumerators and public member variables should start with an