Fix for a bug concerning multiples comments before a catch block

[surli]

Multiple comments placed before a catch block were ignored, see #1073. This PR contains test to spot the bug and a fix.

[monperrus]

OK for me. @tdurieux (expert of the comment mode), OK for you?

[surli]

Don't do the merge right now apparently there is more for issue #1073. I'll check on it tomorrow. Le dim. 25 déc. 2016 à 11:05, Martin Monperrus <notifications@github.com> a écrit :

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OK for me. @tdurieux <https://github.com/tdurieux> (expert of the comment mode), OK for you? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1074 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABaOWIz2div8hEobbVl4pwp5MT0Iy0erks5rLj_igaJpZM4LVRCs> .

[monperrus]

there are already two fixes here, right?. we can still do another PR for the rest of #1073 (one PR = one fix).

[surli]

Ok to do another PR for the rest of #1073 then. Le dim. 25 déc. 2016 à 12:38, Martin Monperrus <notifications@github.com> a écrit :

…

this is already two fixes here, right?. we can still do another PR for the rest of #1073 (one PR = one fix). — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1074 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABaOWM7JpSPKYwXn0MZFE3VhocalcI1Uks5rLlXIgaJpZM4LVRCs> .

[tdurieux]

use sourceStart() instead of getLine

[surli]

Actually I used the same getLine which is used in visitCtClass which manage properly multiple inline comments. If I use here sourceStart() one comment is missing when writing something like:

try {}
// one comment
// two comment
catch {}

[tdurieux]

It is strange because getLine uses sourceStart() to perform the line number

[surli]

What I understand is that sourceStart starts at the same position than the first comment, which means the equality is respected and the comment is included (it was the previous implementation). But then the sourceStart of the second comment is greater than this sourcePosition and so it's not considered.
Now with getLine either it considers all are on the same line, either it computes well the different lines using the line separator position, which is the case I think.

[tdurieux]

call super.visitCtCatch()

[surli]

This super call is directly implemented in the scan override, do we really need it here? It is missing in all the other overriding visitCtXX methods...