[11] RFR(S) : [AOT] jaotc w/ '--ignore-errors' should ignore illegal class files

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8207915/webrev.00/index.html
> 165 lines changed: 137 ins; 15 del; 13 mod; 

Hi all,

could you please review this small patch jaotc tool which makes jaotc to ignore errors caused by incorrect class files? 

JBS: https://bugs.openjdk.java.net/browse/JDK-8207915
webrev: http://cr.openjdk.java.net/~iignatyev//8207915/webrev.00/index.html
testing: 
 - compiler/aot tests on linux, windows, mac 
 - AOT compilation of jck_runtime test suite (still in progress)

Thanks,
-- Igor