WIP fix(gnovm): correct map key persistence

[ltzmaxwell]

closes: #2060

Contributors' checklist...

• Added new tests, or not needed, or not feasible
• Provided an example (e.g. screenshot) to aid review or the PR is self-explanatory
• Updated the official documentation or not needed
• No breaking changes were made, or a BREAKING CHANGE: xxx message was included in the description
• Added references to related issues and PRs
• Provided any useful hints for running manual tests

[ltzmaxwell]

another bug identified:

// PKGPATH: gno.land/r/ptr_map
package ptr_map

import "fmt"

type MyStruct struct {
	Name string
}

var (
	m = map[[1]*MyStruct]string{}

	i1   = &MyStruct{Name: "alice"}
	key1 = [1]*MyStruct{i1}
)

func init() {
	m[key1] = "first key"
}

func main() {
	fmt.Println("Value for key1:", m[key1])
}

// Error:
// interface conversion: gnolang.Value is gnolang.RefValue, not *gnolang.ArrayValue

this if fixed.

[ltzmaxwell]

also this, is it counterintuitive?

// PKGPATH: gno.land/r/ptr_map
package ptr_map

type MyStruct struct {
	Name string
}

var (
	m = map[[1]*MyStruct]string{}

	i1 = &MyStruct{Name: "alice"}
)

func main() {
	// Create an array of pointers to MyStruct
	key1 := [1]*MyStruct{i1}
	m[key1] = "first key"
}
// Error:
// unexpected unreal object

this is fixed but should consider the side effects on storage.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.34%. Comparing base (7ef606c) to head (50f1f51).
Report is 13 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3127   +/-   ##
=======================================
  Coverage   63.34%   63.34%           
=======================================
  Files         548      548           
  Lines       78680    78655   -25     
=======================================
- Hits        49836    49826   -10     
+ Misses      25482    25466   -16     
- Partials     3362     3363    +1     

Flag	Coverage Δ
contribs/gnodev	61.16% <ø> (ø)
contribs/gnofaucet	14.82% <ø> (ø)
misc/genstd	79.72% <ø> (ø)

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