Convert snakecase enum names to camelcase when stringified.

tools/json_schema_compiler/cc_generator.py

Index: tools/json_schema_compiler/cc_generator.py
diff --git a/tools/json_schema_compiler/cc_generator.py b/tools/json_schema_compiler/cc_generator.py
index aefae686cd245335494a69c6c71803664a4c8ad5..26486524b5a0b32388028f66995783152481f177 100644
--- a/tools/json_schema_compiler/cc_generator.py
+++ b/tools/json_schema_compiler/cc_generator.py
@@ -890,8 +890,11 @@ class _Generator(object):
                  (maybe_namespace, classname))
     c.Sblock('switch (enum_param) {')
     for enum_value in self._type_helper.FollowRef(type_).enum_values:
+      name = enum_value.name
+      if 'camel_case_enum_to_string' in self._namespace.compiler_options:
+        name = enum_value.CamelName()
       (c.Append('case %s: ' % self._type_helper.GetEnumValue(type_, enum_value))
-        .Append('  return "%s";' % enum_value.name))
+        .Append('  return "%s";' % name))
     (c.Append('case %s:' % self._type_helper.GetEnumNoneValue(type_))
       .Append('  return "";')
       .Eblock('}')