RFR: 8236108 tools/javac/lambda/LambdaParserTest.java timed out

[Adam Sotona]

Hi,
I would like to ask for review of LambdaParserTest.java timed out fix.
This particular test is very complex and intensive. 
It includes 573696 test actions, each parsing a source fragment. 
As this single test takes on my powerful machine approx. 1 minute and the default timeout is 2 minutes, so I can imagine situations where it timeouts. 

Target machine scale factor was 4, so the default timeout was 480s, however the test elapsed time was 523s. 

Proposed patch extends the timeout by 50% to 180s, so multiplied by the machine-specific timeout scale factor it will give enough time to finish successfully.

JBS: https://bugs.openjdk.java.net/browse/JDK-8236108
webrev: http://cr.openjdk.java.net/~asotona/8236108/webrev.00/

The test is a part of Tier 4 and it is passing for me even without the extended timeout, so I cannot practically verify the patch effectivity unless it fails.

Thanks,
Adam