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Fallback configuration ASTs could misclassify executable commands as DSC resource declarations, suppressing expected Get- corrections.

• Executable contexts: Treat subexpressions and array expressions as boundaries; reject redirected commands and candidates outside standalone statement blocks.
• Regression coverage: Check these cases while preserving resource detection inside conditional bodies.

Write-Output $(Verb Argument {})
Verb Argument {} > $null
if (Verb Argument {}) {}
return Verb Argument {}

These executable commands retain their Get-Verb corrections; resource-shaped commands inside conditional bodies remain recognized.

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What changed in this PR

This PR refines the alias rule’s fallback DSC resource detection so executable commands retain their expected Get- corrections.

Changes:

• Treat subexpressions and array expressions as executable-context boundaries.
• Exclude redirected commands and commands outside standalone statement blocks from resource detection.
• Add regression coverage while preserving resource recognition inside conditional bodies.

File	Description
Tests/​Rules/​AvoidUsingAlias.tests.ps1	Tests executable-command corrections and conditional-body resource detection in fallback ASTs.
Rules/​AvoidAlias.cs	Tightens checks that distinguish DSC resource declarations from executable commands.

_{Review effort: Balanced}