RFR 8202372: Diagnostic with incorrect line info generated when compiling lambda expression

[Jan Lahoda]

In:
test/langtools/tools/javac/lambda/8202372/T8202372.java

There is a typo:

nodynamioccopyright
=>
nodynamiccopyright

(there appears to be a handful of more occurrences of the typo in a 
handful of other files:
test/langtools/tools/javac/lvti/T8200199.java
test/langtools/tools/javac/lvti/badTypeReference/BadTypeReference.java
test/langtools/tools/javac/preview/classReaderTest/Client.java
)

Otherwise looks good to me.

Jan

On 2.5.2018 14:00, B. Blaser wrote:
> Looks good!
>
> Cheers,
> Bernard
>
> On 2 May 2018 at 13:19, Maurizio Cimadamore
> <maurizio.cimadamore at oracle.com> wrote:
>> Hi,
>> I put together a webrev based on the fix that B. Blaser put together few
>> days ago. I've enhanced the test as I realized that the erroneous condition
>> could present in multiple situations (the patch seems to fix all of them).
>>
>> The underlying issue is that when we create a fake block for the lambda
>> expression (which is needed for speculatively check its contents), we forget
>> setting its position - meaning that all diags reported against the rewritten
>> block will now appear off sync.
>>
>> One solution would be to tweak the code to never use speculative trees to
>> report diagnostic - but that would be very invasive; a cheaper fix (the one
>> attempted here) is to add the required positional info to the rewritten tree
>> so that it matches the original position.
>>
>> http://cr.openjdk.java.net/~mcimadamore/8202372/
>>
>> Cheers
>> Maurizio
>>