Make MoveInstructionsWeaveTestCase.testFancyHello pass when run twice

Make MoveInstructionsWeaveTestCase.testFancyHello pass when run twice

Reset counter, just in case this test runs multiple times in one JVM.
This can happen e.g. due to "run all tests" in IntelliJ IDEA, which
directly runs this test class and als WeaverModuleTests, both of which
implement junit.framework.TestCase. In that case, during the second run
the counter would start at a higher base count, making the 2nd test run
fail.

Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>