Fix transpile test diffs

[Jake Bailey (jakebailey)]

Sort of a last minute panic to try and fix these now that they've been introduced just before we delete all the diffs 😄

[Copilot]

Pull request overview

Aligns transpile, declaration, diagnostic, and source-map behavior with the TypeScript reference implementation.

Changes:

• Corrects namespace/export and declaration source-map ranges.
• Improves isolated-declaration inference for computed symbols and implicit undefined.
• Adds regression coverage and refreshes affected baselines.

Reviewed changes

Copilot reviewed 66 out of 85 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
testdata/tests/cases/compiler/isolatedDeclarationsShadowedSymbolComputedName.ts	Adds computed-symbol regression cases.
testdata/baselines/reference/submodule/transpile/jsWithSourceMapBasic(sourceMap=true).js.diff	Removes resolved source-map diff.
testdata/baselines/reference/submodule/transpile/jsWithSourceMapBasic(sourceMap=true).js	Updates source-map baseline.
testdata/baselines/reference/submodule/transpile/jsWithInlineSourceMapBasic(inlineSourceMap=true).js.diff	Removes resolved inline-map diff.
testdata/baselines/reference/submodule/transpile/jsWithInlineSourceMapBasic(inlineSourceMap=true).js	Updates inline-map baseline.
testdata/baselines/reference/submodule/transpile/declarationFunctionDeclarations.d.ts.diff	Removes resolved diagnostic diff.
testdata/baselines/reference/submodule/transpile/declarationFunctionDeclarations.d.ts	Updates parameter diagnostics.
testdata/baselines/reference/submodule/transpile/declarationCrossFileInferences.d.ts.diff	Removes resolved inference diff.
testdata/baselines/reference/submodule/transpile/declarationCrossFileInferences.d.ts	Updates return-type diagnostic location.
testdata/baselines/reference/submodule/transpile/declarationComputedPropertyNames.d.ts.diff	Removes resolved computed-name diff.
testdata/baselines/reference/submodule/transpile/declarationComputedPropertyNames.d.ts	Updates computed-name output.
testdata/baselines/reference/submodule/transpile/declarationBasicSyntax(declarationMap=true).d.ts.diff	Removes resolved declaration-map diff.
testdata/baselines/reference/submodule/transpile/declarationBasicSyntax(declarationMap=true).d.ts	Updates declaration-map baseline.
testdata/baselines/reference/submodule/conformance/tsxEmit3.sourcemap.txt.diff	Reduces TSX source-map differences.
testdata/baselines/reference/submodule/conformance/tsxEmit3.sourcemap.txt	Updates TSX map visualization.
testdata/baselines/reference/submodule/conformance/tsxEmit3.js.map	Updates TSX map data.
testdata/baselines/reference/submodule/conformance/esDecorators-classDeclaration-sourceMap(target=esnext).sourcemap.txt.diff	Reduces ESNext decorator-map diff.
testdata/baselines/reference/submodule/conformance/esDecorators-classDeclaration-sourceMap(target=esnext).sourcemap.txt	Updates ESNext map visualization.
testdata/baselines/reference/submodule/conformance/esDecorators-classDeclaration-sourceMap(target=esnext).js.map.diff	Updates remaining ESNext map diff.
testdata/baselines/reference/submodule/conformance/esDecorators-classDeclaration-sourceMap(target=esnext).js.map	Updates ESNext declaration map.
testdata/baselines/reference/submodule/conformance/esDecorators-classDeclaration-sourceMap(target=es2022).sourcemap.txt.diff	Removes resolved ES2022 map diff.
testdata/baselines/reference/submodule/conformance/esDecorators-classDeclaration-sourceMap(target=es2022).sourcemap.txt	Updates ES2022 map visualization.
testdata/baselines/reference/submodule/conformance/esDecorators-classDeclaration-sourceMap(target=es2015).sourcemap.txt.diff	Removes resolved ES2015 map diff.
testdata/baselines/reference/submodule/conformance/esDecorators-classDeclaration-sourceMap(target=es2015).sourcemap.txt	Updates ES2015 map visualization.
testdata/baselines/reference/submodule/compiler/sourceMapValidationModule.sourcemap.txt.diff	Removes resolved module-map diff.
testdata/baselines/reference/submodule/compiler/sourceMapValidationModule.sourcemap.txt	Updates module map visualization.
testdata/baselines/reference/submodule/compiler/sourceMapValidationModule.js.map.diff	Removes resolved module map diff.
testdata/baselines/reference/submodule/compiler/sourceMapValidationModule.js.map	Updates module map data.
testdata/baselines/reference/submodule/compiler/sourceMapValidationImport.sourcemap.txt.diff	Reduces import map differences.
testdata/baselines/reference/submodule/compiler/sourceMapValidationImport.sourcemap.txt	Updates import map visualization.
testdata/baselines/reference/submodule/compiler/sourceMapValidationImport.js.map.diff	Updates remaining import map diff.
testdata/baselines/reference/submodule/compiler/sourceMapValidationImport.js.map	Updates import map data.
testdata/baselines/reference/submodule/compiler/sourcemapValidationDuplicateNames.sourcemap.txt.diff	Removes resolved duplicate-name diff.
testdata/baselines/reference/submodule/compiler/sourcemapValidationDuplicateNames.sourcemap.txt	Updates duplicate-name visualization.
testdata/baselines/reference/submodule/compiler/sourcemapValidationDuplicateNames.js.map.diff	Removes resolved map diff.
testdata/baselines/reference/submodule/compiler/sourcemapValidationDuplicateNames.js.map	Updates duplicate-name map.
testdata/baselines/reference/submodule/compiler/sourceMapValidationClasses.sourcemap.txt.diff	Reduces class map differences.
testdata/baselines/reference/submodule/compiler/sourceMapValidationClasses.sourcemap.txt	Updates class map visualization.
testdata/baselines/reference/submodule/compiler/sourceMapSample.sourcemap.txt.diff	Reduces sample map differences.
testdata/baselines/reference/submodule/compiler/sourceMapSample.sourcemap.txt	Updates sample map visualization.
testdata/baselines/reference/submodule/compiler/sourceMap-FileWithComments.sourcemap.txt.diff	Reduces commented-file map diff.
testdata/baselines/reference/submodule/compiler/sourceMap-FileWithComments.sourcemap.txt	Updates commented-file visualization.
testdata/baselines/reference/submodule/compiler/sourceMap-FileWithComments.js.map	Updates commented-file map.
testdata/baselines/reference/submodule/compiler/sourceMap-Comments(target=es2015).sourcemap.txt.diff	Removes resolved comments map diff.
testdata/baselines/reference/submodule/compiler/sourceMap-Comments(target=es2015).sourcemap.txt	Updates comments map visualization.
testdata/baselines/reference/submodule/compiler/sourceMap-Comments(target=es2015).js.map.diff	Removes resolved comments map diff.
testdata/baselines/reference/submodule/compiler/sourceMap-Comments(target=es2015).js.map	Updates comments map data.
testdata/baselines/reference/submodule/compiler/jsxFactoryQualifiedName.sourcemap.txt.diff	Reduces qualified JSX map diff.
testdata/baselines/reference/submodule/compiler/jsxFactoryQualifiedName.sourcemap.txt	Updates qualified JSX visualization.
testdata/baselines/reference/submodule/compiler/jsxFactoryQualifiedName.js.map	Updates qualified JSX map.
testdata/baselines/reference/submodule/compiler/jsxFactoryIdentifier.sourcemap.txt.diff	Reduces identifier JSX map diff.
testdata/baselines/reference/submodule/compiler/jsxFactoryIdentifier.sourcemap.txt	Updates identifier JSX visualization.
testdata/baselines/reference/submodule/compiler/jsxFactoryIdentifier.js.map	Updates identifier JSX map.
testdata/baselines/reference/submodule/compiler/declarationMapsMultifile.sourcemap.txt.diff	Reduces multifile declaration-map diff.
testdata/baselines/reference/submodule/compiler/declarationMapsMultifile.sourcemap.txt	Updates multifile map visualization.
testdata/baselines/reference/submodule/compiler/declarationMapsMultifile.js.map.diff	Updates remaining multifile map diff.
testdata/baselines/reference/submodule/compiler/declarationMapsMultifile.js.map	Updates multifile declaration map.
testdata/baselines/reference/compiler/isolatedDeclarationsShadowedSymbolComputedName.types	Adds inferred-type baseline.
testdata/baselines/reference/compiler/isolatedDeclarationsShadowedSymbolComputedName.symbols	Adds symbol-resolution baseline.
testdata/baselines/reference/compiler/isolatedDeclarationsShadowedSymbolComputedName.js	Adds emit baseline.
testdata/baselines/reference/compiler/isolatedDeclarationsShadowedSymbolComputedName.errors.txt	Adds diagnostic baseline.
internal/transformers/tstransforms/runtimesyntax.go	Corrects namespace export map ranges.
internal/transformers/estransforms/using.go	Clears cloned using-target location.
internal/transformers/declarations/transform.go	Corrects method declaration mapping.
internal/transformers/declarations/diagnostics.go	Supplies enclosing parameter context.
internal/pseudochecker/lookup.go	Improves inference and computed-name handling.
internal/pseudochecker/checker.go	Adds resolver support.
internal/checker/nodebuilderimpl.go	Aligns container ordering and fallback diagnostics.
internal/checker/emitresolver.go	Exposes checker-safe global Symbol resolution.

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[Jake Bailey (jakebailey)]

I think it's actually quite possible to make the name resolver not have compiler options at all, but this of course goofy to have plumbed this way (for the time being)

[Jake Bailey (jakebailey)]

I have a working version of that idea, and it does work, though maybe a little weird.

[Jake Bailey (jakebailey)]

I'm not confident enough at this stage. I don't like that we will lose the diffs but we can just do some trickery I guess in a separate PR to try and fix the bugs.

[Ryan Cavanaugh (RyanCavanaugh)]

Thank you for contributing to the TypeScript native port!

Development has moved from this repository back to the main microsoft/TypeScript repository. GitHub does not have PR transfer functionality, so we're closing this PR here.

If this change is still relevant, please reopen it as a new pull request in microsoft/TypeScript. We'd appreciate your help carrying the contribution over, and we apologize for the extra work.

See microsoft/typescript-go#4918 for more information about the move.