#3 Improve error for missing setter with html:bidir-value

[Andrew Oliver]

If there is a getter but no setter for a property used in html:bidir-value, Flavour reports this error message:

[ERROR] Error calling proxy method org.teavm.flavour.templates.Templates.create(Lorg/teavm/metaprogramming/ReflectClass;Lorg/teavm/metaprogramming/Value;)V: java.lang.reflect.InvocationTargetException

This is not useful for diagnosing the source or resolution of the problem. A better message would indicate one or both of the following:

• The line where the problem occurred
• The missing method

[Andrew Oliver]

Fixed in recent commit. To be included in release 0.3.1.

[Andrew Oliver]

Closing -- fixed in 0.3.1