RFR: 8286990: Add compiler name to warning messages in Compiler Directive

[Vladimir Kozlov]

On Mon, 9 May 2022 05:23:14 GMT, yuta <duke at openjdk.java.net> wrote:

> When using Compiler Directive such as `java -XX:+UnlockDiagnosticVMOptions -XX:CompilerDirectivesFile=<CompilerDirectives.json> <Java.class>` ,
> it shows totally the same message for c1 and c2 compiler and the user would be confused about 
> which compiler is affected by this message.
> This should show messages with their compiler name so that the user knows which compiler shows this message.
> 
> My change result would be like the below.
> 
> 
> OpenJDK 64-Bit Server VM warning: printing of assembly code is enabled; turning on DebugNonSafepoints to gain additional output
> OpenJDK 64-Bit Server VM warning: printing of assembly code is enabled; turning on DebugNonSafepoints to gain additional output
> 
> ->
> 
> OpenJDK 64-Bit Server VM warning: c1: printing of assembly code is enabled; turning on DebugNonSafepoints to gain additional output
> OpenJDK 64-Bit Server VM warning: c2: printing of assembly code is enabled; turning on DebugNonSafepoints to gain additional output

Seems reasonable.

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Marked as reviewed by kvn (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/8591