> Hi all,
> 
> This adds some more debug prints to various internals.
> 
> When printing an `InstanceKlass`, the kind is now shown. For example:
> 
> InstanceKlass (kind=1): java.lang.Integer {0x00001ff00022c318}
> 
> 
> The `InlineKlass::Members` are also printed. For example (note that to get 
> individual array entries `WizardMode` must be enabled):
> 
>  - ---- inline type members:
>  - extended signature registers:      Array<T>(0x00000001330002f8)
> 0 : SigEntry: type=18 offset=0 null_marker=0 Symbol: 'java/lang/Integer' 
> count 65535
> 1 : SigEntry: type=10 offset=16 null_marker=0 Symbol: 'value' count 65535
> 2 : SigEntry: type=14 offset=24 null_marker=0 Symbol: 'java/lang/Integer' 
> count 65535
>  - return registers:                  Array<T>(0x0000000133000348)
> 0 : (c_rarg0,c_rarg0)
> 1 : (c_rarg7,BAD!)
>  - pack handler:                      0x0000000119b21238
>  - pack handler (jobject):            0x0000000119b21140
>  - unpack handler:                    0x0000000119b21244
>  - null reset offset:                 128
>  - payload offset:                    16
>  - payload size (bytes):              8
>  - payload alignment:                 8
>  - null-free non-atomic size (bytes): 4
>  - null-free non-atomic alignment:    4
>  - null-free atomic size (bytes):     4
>  - nullable atomic size (bytes):      8
>  - nullable non-atomic size (bytes):  5
>  - null marker offset:                20
> 
> 
> Fields now indicate their field flags. Non-static fields indicate (a) when 
> they are flat and (b) their layout when flat.  For example:
> 
>  - ---- non-static fields (1 words):
>  - private final value flat 'inner' (fields 0x00000006) 'LAValue;' @12 
> LayoutKind: NULLABLE_NON_ATOMIC_FLAT
> 
> 
> Arrays already have plenty of flattening information that can be printed.
> 
> Testing: tiers 1-3.

Paul Hübner has updated the pull request incrementally with one additional 
commit since the last revision:

  Remove commented out line.

-------------

Changes:
  - all: https://git.openjdk.org/valhalla/pull/2208/files
  - new: https://git.openjdk.org/valhalla/pull/2208/files/cd8b1364..cd9b96b2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=2208&range=02
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=2208&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/valhalla/pull/2208.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/2208/head:pull/2208

PR: https://git.openjdk.org/valhalla/pull/2208

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