[gwt-contrib] Update TypeAccessor.BOOL.canSet() to reflect the types that its toBoolean() method will accept. (issue852801)

[bobv]

Reviewers: kjin,

Description:
Update TypeAccessor.BOOL.canSet() to reflect the types that its
toBoolean() method will accept.
Patch by: bobv
Review by: kjin

Please review this at http://gwt-code-reviews.appspot.com/852801/show

Affected files:
  M user/src/com/google/gwt/rpc/server/CommandSerializationUtil.java


Index: user/src/com/google/gwt/rpc/server/CommandSerializationUtil.java
===================================================================
--- user/src/com/google/gwt/rpc/server/CommandSerializationUtil.java	 
(revision 8728)
+++ user/src/com/google/gwt/rpc/server/CommandSerializationUtil.java	 
(working copy)
@@ -72,7 +72,9 @@
     BOOL {
       @Override
       public boolean canSet(Class<?> clazz) {
-        return Boolean.class.isAssignableFrom(clazz);
+        return Boolean.class.isAssignableFrom(clazz)
+            || Number.class.isAssignableFrom(clazz)
+            || String.class.isAssignableFrom(clazz);
       }

       @Override


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