Allow performance tests to throw general Exception

The PerformanceTestRunner unnecessarily restricts exceptions that can be
thrown by the test() method to CoreException. The test runner can handle
exceptions of every type anyway. Some performance tests in Equinox need
to throw IOExceptions, thus this change generalizes the exception thrown
by the test() method.

Author: HeikoKlare

runtime/tests/org.eclipse.core.tests.harness/src/org/eclipse/core/tests/harness/PerformanceTestRunner.java

@@ -16,7 +16,6 @@
 import static org.junit.Assert.fail;
 
 import junit.framework.TestCase;
-import org.eclipse.core.runtime.CoreException;
 import org.eclipse.test.performance.Dimension;
 import org.eclipse.test.performance.Performance;
 import org.eclipse.test.performance.PerformanceMeter;
@@ -37,7 +36,7 @@ public void setRegressionReason(String comment) {
 	/**
 	 * Implemented by subclasses to perform the work to be measured.
 	 */
-	protected abstract void test() throws CoreException;
+	protected abstract void test() throws Exception;
 
 	/**
 	 * Executes the performance test the given number of times. Use the outer time