Automatically do safe conversions of primitive types

[hajo-tng]

In version 1.7.0 this works:

@DataProvider
public static Object[][] myDataProvider() {
    return new Object[][] {
        { 0, 0 },
        { 1, 1 }
    };
}

@Test
@UseDataProvider( "myDataProvider" )
public void testSomething( long input, long expected ) {
    // ...
}

In version 1.9.1 it results in this error, as the data provider gives an int where a long is expected:

java.lang.Error: Cannot explode 'MyTest.testSomething' using 'myDataProvider' due to: Parameter 0 is of type long but argument given is 0 of type Integer
    at com.tngtech.java.junit.dataprovider.internal.TestGenerator.generateExplodedTestMethodsFor(TestGenerator.java:46)
    at com.tngtech.java.junit.dataprovider.DataProviderRunner.generateExplodedTestMethodsFor(DataProviderRunner.java:181)
    at com.tngtech.java.junit.dataprovider.DataProviderRunner.computeTestMethods(DataProviderRunner.java:136)
    ...
Caused by: java.lang.IllegalArgumentException: Parameter 0 is of type long but argument given is 0 of type Integer
    at com.tngtech.java.junit.dataprovider.internal.DataConverter.checkIfArgumentsMatchParameterTypes(DataConverter.java:127)
    at com.tngtech.java.junit.dataprovider.internal.TestGenerator.explodeTestMethod(TestGenerator.java:112)
    at com.tngtech.java.junit.dataprovider.internal.TestGenerator.explodeTestMethod(TestGenerator.java:88)
    at com.tngtech.java.junit.dataprovider.internal.TestGenerator.generateExplodedTestMethodsFor(TestGenerator.java:44)
    ... 27 more

Unfortunately this affects a large number of data providers in our project. It would be nice to be able to continue using ints and have them automatically converted to longs.