RFR: 8150083: Convert VerboseVerification to Unified Logging

[Rachel Protacio]

Hello,

Please review this conversion of -XX:+VerboseVerification to 
-Xlog:verboseverification=info.

Bug: https://bugs.openjdk.java.net/browse/JDK-8150083
Open webrev: http://cr.openjdk.java.net/~rprotacio/8150083.01/

Sample old output:

    Verifying class hello with new format
    Verifying method hello.<init>()V
    StackMapTable: frame_count = 0
    table = {
      }
    bci: @0
    flags: { flagThisUninit }
    locals: { uninitializedThis }
    stack: { }
    offset = 0,  opcode = aload_0
    bci: @1
    flags: { flagThisUninit }
    locals: { uninitializedThis }
    stack: { uninitializedThis }
    offset = 1,  opcode = invokespecial
    bci: @4
    flags: { }
    locals: { 'hello' }
    stack: { }
    offset = 4,  opcode = return
    Verifying method hello.main([Ljava/lang/String;)V

Sample new output:

    [0.696s][info][verboseverification] Verifying class
    VerboseVerificationTest$InternalClass with new format
    [0.696s][info][verboseverification] Verifying method
    VerboseVerificationTest$InternalClass.<init>()V
    [0.696s][info][verboseverification] StackMapTable: frame_count = 0
    [0.696s][info][verboseverification] table = {
    [0.696s][info][verboseverification]  }
    [0.696s][info][verboseverification] bci: @0
    [0.696s][info][verboseverification] flags: { flagThisUninit }
    [0.696s][info][verboseverification] locals: { uninitializedThis }
    [0.696s][info][verboseverification] stack: { }
    [0.696s][info][verboseverification] offset = 0,  opcode = aload_0
    [0.696s][info][verboseverification] bci: @1
    [0.696s][info][verboseverification] flags: { flagThisUninit }
    [0.696s][info][verboseverification] locals: { uninitializedThis }
    [0.696s][info][verboseverification] stack: { uninitializedThis }
    [0.696s][info][verboseverification] offset = 1,  opcode = invokespecial
    [0.696s][info][verboseverification] bci: @4
    [0.696s][info][verboseverification] flags: { }
    [0.696s][info][verboseverification] locals: {
    'VerboseVerificationTest$InternalClass' }
    [0.696s][info][verboseverification] stack: { }
    [0.696s][info][verboseverification] offset = 4,  opcode = return
    [0.696s][info][verboseverification] Verifying method
    VerboseVerificationTest$InternalClass.main([Ljava/lang/String;)V

Tested with JPRT; jck vm, lang, and api/java_lang; and RBT hotspot and 
non-colo tests.

Thank you,
Rachel