Checkstyle fixes.

Author: vyazelenko

sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/csharp/CSharpUtil.java

@@ -163,6 +163,7 @@ static String generateDocumentation(final String indent, final Token token)
             indent + "/// </summary>\n";
     }
 
+    @SuppressWarnings("JavadocVariable")
     enum Separators
     {
         BEGIN_GROUP('['),

sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/java/JavaGenerator.java

@@ -49,6 +49,7 @@ public class JavaGenerator implements CodeGenerator
     static final String MESSAGE_HEADER_ENCODER_TYPE = "MessageHeaderEncoder";
     static final String MESSAGE_HEADER_DECODER_TYPE = "MessageHeaderDecoder";
 
+    @SuppressWarnings("JavadocVariable")
     enum CodecType
     {
         DECODER,

sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/java/JavaUtil.java

@@ -39,6 +39,7 @@ public class JavaUtil
     /**
      * Separator symbols for {@link Object#toString()} implementations on codecs.
      */
+    @SuppressWarnings("JavadocVariable")
     enum Separator
     {
         BEGIN_GROUP('['),

sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/rust/RustGenerator.java

@@ -53,6 +53,7 @@ public class RustGenerator implements CodeGenerator
     static final String ANONYMOUS_LIFETIME = "'_";
     static final String BUF_LIFETIME = "'a";
 
+    @SuppressWarnings("JavadocVariable")
     enum CodecType
     {
         Decoder

sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/rust/RustUtil.java

@@ -301,6 +301,7 @@ static Appendable indent(final Appendable appendable, final int level, final Str
         return indent(appendable, level).append(format(f, args));
     }
 
+    @SuppressWarnings("JavadocVariable")
     enum ReservedKeyword
     {
         Abstract, AlignOf, As, Async, Become, Box, Break, Const, Continue,