8006000: TEST_BUG: java/lang/invoke/lambda/LambdaAccessControlTest.java fails intermittently

[Alan Bateman]

Robert - LambdaAccessControlTest is a problem when running the jdk tests 
concurrently (jtreg -concurrency...). The test extends LUtils so it's 
only going to compile if LambdaAccessControlDoPrivilegedTest.java has 
been previously compiled into the same work directory. I'd like to move 
LUtils into its own source file so that it can be compiled correctly by 
both tests. The webrev is here:

http://cr.openjdk.java.net/~alanb/8006000/webrev/

Thanks,
Alan.