RFR: 8033441: print line numbers with -XX:+PrintOptoAssembly

[Jason Tatton]

Hi all,

Here is a patch which adds line number information to the `-XX:+PrintOptoAssembly` cmd line option output.

A new unit test is provided for this functionality. Note that the build must have debugging enabled for the test to be relevant and enabled.

Here is an example output:-
before:
        # Tryme::foo @ bci:3  L[0]=_ STK[0]=#NULL STK[1]=#Ptr0x0000ffff340089c0

after:
        # Tryme::foo @ bci:3 (line 12)  L[0]=_ STK[0]=#NULL STK[1]=#Ptr0x0000ffff1008fd80

Testing:
I have run tier 1/2 on linux on x86 and aarch64. With a `--enable-debug` build.

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Commit messages:
 - 8033441

Changes: https://git.openjdk.java.net/jdk/pull/1272/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1272&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8033441
  Stats: 83 lines in 2 files changed: 81 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1272.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1272/head:pull/1272

PR: https://git.openjdk.java.net/jdk/pull/1272