feat: implement inline function

[polatengin]

Description

Fixes #10454

This PR introduces a new inline() function that provides synthetic sugar for external input prompts in Bicep parameter files. The function serves as a shorthand for externalInput('sys.cli', parameterName)

Example Usage

param foo = inline()

Design Decisions

The following usages are not supported and will result in validation errors:

Variable assignments

var bar = inline()

String interpolation

param baz = "prefix-${inline()}"
param bat = "${inline()}_${inline()}"

Parameter Name Inference

• param foo = { key1: inline() } → uses "key1" as the CLI argument name
• param foo = inline() → uses "foo" as the CLI argument name
• param foo = [inline()] → uses "foo" as the CLI argument name

Checklist

• I have read and adhere to the contribution guide.

Microsoft Reviewers: Open in CodeFlow

[github-actions]

Test this change out locally with the following install scripts (Action run 18506231495)

VSCode

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-vsix.sh) --run-id 18506231495

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-vsix.ps1) } -RunId 18506231495"

Azure CLI

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-cli.sh) --run-id 18506231495

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-cli.ps1) } -RunId 18506231495"

[github-actions]

Dotnet Test Results

    96 files   -     48      96 suites   - 48   42m 55s ⏱️ - 37m 34s
12 426 tests +     3  12 426 ✅ +     4  0 💤 ±0  0 ❌  - 1 
28 597 runs   - 14 244  28 597 ✅  - 14 243  0 💤 ±0  0 ❌  - 1 

Results for commit 7197db0. ± Comparison against base commit 6bb5d5f.

This pull request removes 1920 and adds 669 tests. Note that renamed tests count towards both.

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		nestedProp2: 2
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		prop2: false
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	prop1: true
	prop2: false
…

Bicep.Cli.UnitTests.Services.ReplEnvironmentTests ‑ Expression_evaluation_succeeds
Bicep.Cli.UnitTests.Services.ReplEnvironmentTests ‑ Function_syntax_is_highlighted
Bicep.Cli.UnitTests.Services.ReplEnvironmentTests ‑ Type_syntax_is_highlighted
Bicep.Cli.UnitTests.Services.ReplEnvironmentTests ‑ Valid_function_syntax_raises_no_diagnostics
Bicep.Cli.UnitTests.Services.ReplEnvironmentTests ‑ Valid_type_syntax_raises_no_diagnostics
Bicep.Cli.UnitTests.Services.ReplEnvironmentTests ‑ Valid_var_syntax_raises_no_diagnostics
Bicep.Cli.UnitTests.Services.ReplEnvironmentTests ‑ Var_syntax_is_highlighted
Bicep.Core.IntegrationTests.AzTypesViaRegistryTests ‑ Bicep_compiler_handles_corrupted_extension_package_gracefully (\u001f�\u0008\u0000\u0000\u0000\u0000\u0000\u0000
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Bicep.Core.IntegrationTests.AzTypesViaRegistryTests ‑ Bicep_compiler_handles_corrupted_extension_package_gracefully (\u001f�\u0008\u0000\u0000\u0000\u0000\u0000\u0000
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Bicep.Core.IntegrationTests.AzTypesViaRegistryTests ‑ Bicep_compiler_handles_corrupted_extension_package_gracefully (\u001f�\u0008\u0000\u0000\u0000\u0000\u0000\u0000
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�\u0005:彪\u0000\u000c\u0000\u0000,"'7' is an invalid end of a number. Expected a delimiter. Path: $.INVALID_JSON | LineNumber: 0 | BytePositionInLine: 20.")
…

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