Exclude generated IC tests from ant build

Generated tests depend on the annotations from the `tests-common` module.
Testing utils from test root of the `incremental-compilation-impl` module
are also used in Gradle tests, so the test root is built in the ant build too.
However building `tests-common` separately from the compiler is complicated,
so I decided to exclude generated tests from 'kotlin-build-common-test.jar'.

build.xml

@@ -558,6 +558,8 @@
                 <pathelement path="build-common/test"/>
                 <pathelement path="compiler/incremental-compilation-impl/test"/>
             </src>
+            <exclude name="**/*Generated.java"/>
+
             <classpath>
                 <pathelement path="${bootstrap.runtime}"/>
                 <pathelement path="${bootstrap.reflect}"/>