Another view on how tests should like

[max-martynov]

When I started, I was thinking that this new tests system will be more concise and handy. Maybe it's just the problem in PHP bindings from ControlFlowInstructions to PsiElements but I find it still hard to write tests like that. However it can still be better than the previous solution.

Anyway, for referencing PsiElements I decided to go with the following triple: some text representation of a PsiElement, line number in the source file and column number in the source file where the PsiElement is located.

As a text representation I decided to use the simple PsiElement.toString() method because it's mostly the same content as the PsiViewer shows us. Another advantage is that keeps text short even for structures like for or if.

I tried not to add the column number but keep struggling with the corner cases like that:

 for ($i = 0; $i < 2; $i++)
 {
...
}

Here $i in $i = 0 and $i in $i < 2 correspond to 2 different PsiElements (they are both VariableImpls but still). So that's why I find column number necessary.