#143 Error on import statements

[Philip Isenhour]

Using plugin build from 120405, loaded from http://echarts.sourceforge.net/eclipse/test/

The editor flags every import statement with an error. For example:

import java.util.Properties;

is flagged with error

mismatched input 'java' expecting '?'

[Philip Isenhour]

Fixed in r2391. Support for validating non-wildcard imports was added in r2417. I'm leaving this bug open until we determine whether or not it will be possible to validate wildcard import statements. (Wildcard import statements work correctly, but attempts to import invalid packages are not currently flagged as errors.)