[ci-scan] Build break: ILCompiler.ReadyToRun.Tests fails CS7036 on ReadyToRunCompilerContext ctor

[lewing]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1530244
Build error leg or test failing: linux-x64 checked CLR_Tools_Tests - ILCompiler.ReadyToRun.Tests

main @ 95b7768 does not build.

Semantic merge conflict between two PRs that landed within ~18 hours of each other,
so neither one's CI saw the other:

• Make wasm 'V' signature raising deterministic and add a regression test #131429 (merged 2026-07-27T20:14Z) added
  src/coreclr/tools/aot/ILCompiler.ReadyToRun.Tests/WasmArgumentLayoutTests.cs,
  which constructs ReadyToRunCompilerContext with 5 arguments.
• Preserve IL for CoreCLR interpreter fallback on Apple mobile #130622 (merged 2026-07-28T14:04Z) added a bool targetAllowsRuntimeCodeGeneration
  parameter to that constructor, making it 6.

Error Details

/__w/1/s/src/coreclr/tools/aot/ILCompiler.ReadyToRun.Tests/WasmArgumentLayoutTests.cs(166,45): error CS7036: There is no argument given that corresponds to the required parameter 'instructionSetSupport' of 'ReadyToRunCompilerContext.ReadyToRunCompilerContext(TargetDetails, SharedGenericsMode, bool, bool, InstructionSetSupport, CompilerTypeSystemContext)' [/__w/1/s/src/coreclr/tools/aot/ILCompiler.ReadyToRun.Tests/ILCompiler.ReadyToRun.Tests.csproj]

Error Message

{
  "ErrorMessage": "WasmArgumentLayoutTests.cs(166,45): error CS7036: There is no argument given that corresponds to the required parameter 'instructionSetSupport'",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Note

This issue body was drafted with GitHub Copilot and reviewed by me before filing.

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1530244
Error message validated: [WasmArgumentLayoutTests.cs(166,45): error CS7036: There is no argument given that corresponds to the required parameter 'instructionSetSupport']
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 7/28/2026 10:51:17 PM UTC

Report

Build	Repository	Step Name	Console log	Pull Request
1530023	dotnet/runtime	Build product	Log	#131479
1529903	dotnet/runtime	Build product	Log	#131474
1530536	dotnet/runtime	Build product	Log	#130373
1530734	dotnet/runtime	Build product	Log	#123920
1530717	dotnet/runtime	Build product	Log	#131513
1530661	dotnet/runtime	Build product	Log	#131009
1530593	dotnet/runtime	Build product	Log	#131458
1530544	dotnet/runtime	Build product	Log	#131485
1530524	dotnet/runtime	Build product	Log	#131490
1530521	dotnet/runtime	Build product	Log	#131500
1530499	dotnet/runtime	Build product	Log	#128152
1530475	dotnet/runtime	Build product	Log	#131494
1530433	dotnet/runtime	Build product	Log	#131493
1530399	dotnet/runtime	Build product	Log	#131488
1530345	dotnet/runtime	Build product	Log	#131383
1530279	dotnet/runtime	Build product	Log	#131307
1530245	dotnet/runtime	Build product	Log	#131489
1530244	dotnet/runtime	Build product	Log

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
18	18	18