Generic Plugin Framework flattener/expander functions PoC - Phase 2

[ewbankkit]

Description

Extends flex.Expand and flex.Flatten to support struct-to-struct copies including nested (slices of) structs.

Relations

Relates #31858.

Output from Acceptance Testing

% make testacc TESTARGS='-run=TestAccEC2InstanceConnectEndpoint_' PKG=ec2 ACCTEST_PARALLELISM=2
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/ec2/... -v -count 1 -parallel 2  -run=TestAccEC2InstanceConnectEndpoint_ -timeout 180m
=== RUN   TestAccEC2InstanceConnectEndpoint_basic
=== PAUSE TestAccEC2InstanceConnectEndpoint_basic
=== RUN   TestAccEC2InstanceConnectEndpoint_disappears
=== PAUSE TestAccEC2InstanceConnectEndpoint_disappears
=== RUN   TestAccEC2InstanceConnectEndpoint_tags
=== PAUSE TestAccEC2InstanceConnectEndpoint_tags
=== RUN   TestAccEC2InstanceConnectEndpoint_securityGroupIDs
=== PAUSE TestAccEC2InstanceConnectEndpoint_securityGroupIDs
=== CONT  TestAccEC2InstanceConnectEndpoint_basic
=== CONT  TestAccEC2InstanceConnectEndpoint_tags
--- PASS: TestAccEC2InstanceConnectEndpoint_basic (364.53s)
=== CONT  TestAccEC2InstanceConnectEndpoint_securityGroupIDs
--- PASS: TestAccEC2InstanceConnectEndpoint_securityGroupIDs (366.63s)
=== CONT  TestAccEC2InstanceConnectEndpoint_disappears
--- PASS: TestAccEC2InstanceConnectEndpoint_tags (1112.73s)
--- PASS: TestAccEC2InstanceConnectEndpoint_disappears (383.26s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/ec2	1119.436s

[github-actions]

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[ewbankkit]

% make testacc TESTARGS='-run=TestAccEC2InstanceConnectEndpoint_' PKG=ec2 ACCTEST_PARALLELISM=2
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/ec2/... -v -count 1 -parallel 2  -run=TestAccEC2InstanceConnectEndpoint_ -timeout 180m
=== RUN   TestAccEC2InstanceConnectEndpoint_basic
=== PAUSE TestAccEC2InstanceConnectEndpoint_basic
=== RUN   TestAccEC2InstanceConnectEndpoint_disappears
=== PAUSE TestAccEC2InstanceConnectEndpoint_disappears
=== RUN   TestAccEC2InstanceConnectEndpoint_tags
=== PAUSE TestAccEC2InstanceConnectEndpoint_tags
=== RUN   TestAccEC2InstanceConnectEndpoint_securityGroupIDs
=== PAUSE TestAccEC2InstanceConnectEndpoint_securityGroupIDs
=== CONT  TestAccEC2InstanceConnectEndpoint_basic
=== CONT  TestAccEC2InstanceConnectEndpoint_tags
--- PASS: TestAccEC2InstanceConnectEndpoint_basic (381.75s)
=== CONT  TestAccEC2InstanceConnectEndpoint_disappears
--- PASS: TestAccEC2InstanceConnectEndpoint_disappears (377.37s)
=== CONT  TestAccEC2InstanceConnectEndpoint_securityGroupIDs
--- PASS: TestAccEC2InstanceConnectEndpoint_securityGroupIDs (365.15s)
--- PASS: TestAccEC2InstanceConnectEndpoint_tags (1136.78s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/ec2	1142.641s

% make testacc TESTARGS='-run=TestAccResourceExplorer2_serial/Index' PKG=resourceexplorer2 
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/resourceexplorer2/... -v -count 1 -parallel 20  -run=TestAccResourceExplorer2_serial/Index -timeout 180m
=== RUN   TestAccResourceExplorer2_serial
=== PAUSE TestAccResourceExplorer2_serial
=== CONT  TestAccResourceExplorer2_serial
=== RUN   TestAccResourceExplorer2_serial/Index
=== RUN   TestAccResourceExplorer2_serial/Index/tags
=== RUN   TestAccResourceExplorer2_serial/Index/type
=== RUN   TestAccResourceExplorer2_serial/Index/basic
=== RUN   TestAccResourceExplorer2_serial/Index/disappears
--- PASS: TestAccResourceExplorer2_serial (152.11s)
    --- PASS: TestAccResourceExplorer2_serial/Index (152.11s)
        --- PASS: TestAccResourceExplorer2_serial/Index/tags (60.28s)
        --- PASS: TestAccResourceExplorer2_serial/Index/type (45.17s)
        --- PASS: TestAccResourceExplorer2_serial/Index/basic (26.39s)
        --- PASS: TestAccResourceExplorer2_serial/Index/disappears (20.27s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/resourceexplorer2	157.492s

[ewbankkit]

Next phase:

• Address TODOs in code
• Use in all new Plugin Framework resources
• Documentation

[github-actions]

This functionality has been released in v5.13.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

I'm going to lock this pull request because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.