[sh/jdk8u] Bulk backports to sh/jdk8

[Zhengyu Gu]

On 5/31/21 5:29 AM, Aleksey Shipilev wrote:
> Hi,
> 
> I would like to backport these simple things to reduce the difference 
> between codebases:
>    [backport] 8261413: Shenandoah: Disable class-unloading in I-U mode
>    [backport] 8261251: Shenandoah: Use object size for full GC humongous
>    [backport] 8259954: gc/shenandoah/mxbeans tests fail with -Xcomp
>    [backport] 8259580: Shenandoah: uninitialized label in 
> VerifyThreadGCState
> 
> Webrev:
>    
> https://cr.openjdk.java.net/~shade/shenandoah/backports/jdk8u-20210531/webrev.01/ 
> 
> 
> Testing: hotspot_gc_shenandoah {fastdebug,release}
> 

shenandoahVerifier.cpp

  class VerifyThreadGCState : public ThreadClosure {
  private:
-  const char* _label;
-  char _expected;
+  const char* const _label;
+         char const _expected;

Indent.

Otherwise, looks good to me.

Thanks,

-Zhengyu