Minimize exceptions in test methods signature

[EgorkaKulikov]

Description

The generated tests code looks as follows:

 public void testSetImage2() throws Throwable, Exception  { ... }

Throwing both Exception and Throwable is odd.
Can be reproduced with ContestEstimator on PDVisibleSignDesigner , method setImage

Expected behavior

The signature looks like

1. if Throwable is really required

 public void testSetImage2() throws Throwable { ... } 

2. if throwable is really not required

 public void testSetImage2() throws Exception  { ... }

Context

Possibly the reason of this problem is in

//If [InvocationTargetException] is thrown manually in test, we 
// to add "throws Throwable" and other exceptions are not required so on.
if (methodId == getTargetException) {
        collectedExceptions.clear()
        addException(Throwable::class.id)
        return
}

[EgorkaKulikov]

public void testPDVisibleSignDesigner2() throws Exception, IOException

Another example on the same class

[EgorkaKulikov]

public void testPageHeightByFuzzer7() throws Exception, ClassNotFoundException, NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException, InvocationTargetException