Some tier1 tests timeout on risc-v

[Vladimir Kempik]

Hello
Still trying to get clean tier1 results, apart from weakCompareAndSet failures ( which can be ignored on risc-v) I see three more tests to error due to timeouts:

test/langtools/tools/javac/7142086/T7142086.java  , needed timeout increase from 10 sec to 30 to make test pass on thead board.

test/langtools/tools/javac/failover/CheckAttributedTree.java timeout increase from default 480 sec to 600, related to https://bugs.openjdk.org/browse/JDK-6982992

test/langtools/tools/javac/lambda/LambdaParserTest.java timeout increase from default 480 sec to 600

Is this a right way to workaround these issues ? Should we update tests somehow ?

Regards, Vladimir