diff --git a/tests/cases/fourslash_old/cancellationWhenfindingAllRefsOnDefinition.ts b/tests/cases/fourslash/cancellationWhenfindingAllRefsOnDefinition.ts
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rename from tests/cases/fourslash_old/cancellationWhenfindingAllRefsOnDefinition.ts
rename to tests/cases/fourslash/cancellationWhenfindingAllRefsOnDefinition.ts
diff --git a/tests/cases/fourslash_old/externalModuleRefernceResolutionOrderInImportDeclaration.ts b/tests/cases/fourslash/externalModuleRefernceResolutionOrderInImportDeclaration.ts
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rename from tests/cases/fourslash_old/externalModuleRefernceResolutionOrderInImportDeclaration.ts
rename to tests/cases/fourslash/externalModuleRefernceResolutionOrderInImportDeclaration.ts
diff --git a/tests/cases/fourslash_old/findAllRefsOnDefinition.ts b/tests/cases/fourslash/findAllRefsOnDefinition.ts
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rename from tests/cases/fourslash_old/findAllRefsOnDefinition.ts
rename to tests/cases/fourslash/findAllRefsOnDefinition.ts
diff --git a/tests/cases/fourslash_old/findAllRefsOnDefinition2.ts b/tests/cases/fourslash/findAllRefsOnDefinition2.ts
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rename from tests/cases/fourslash_old/findAllRefsOnDefinition2.ts
rename to tests/cases/fourslash/findAllRefsOnDefinition2.ts
diff --git a/tests/cases/fourslash_old/localGetReferences.ts b/tests/cases/fourslash/localGetReferences.ts
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rename from tests/cases/fourslash_old/localGetReferences.ts
rename to tests/cases/fourslash/localGetReferences.ts
diff --git a/tests/cases/fourslash_old/referenceToClass.ts b/tests/cases/fourslash/referenceToClass.ts
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rename from tests/cases/fourslash_old/referenceToClass.ts
rename to tests/cases/fourslash/referenceToClass.ts
diff --git a/tests/cases/fourslash_old/referencesForClassLocal.ts b/tests/cases/fourslash/referencesForClassLocal.ts
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rename from tests/cases/fourslash_old/referencesForClassLocal.ts
rename to tests/cases/fourslash/referencesForClassLocal.ts
diff --git a/tests/cases/fourslash_old/referencesForClassParameter.ts b/tests/cases/fourslash/referencesForClassParameter.ts
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rename from tests/cases/fourslash_old/referencesForClassParameter.ts
rename to tests/cases/fourslash/referencesForClassParameter.ts
diff --git a/tests/cases/fourslash_old/referencesForFunctionOverloads.ts b/tests/cases/fourslash/referencesForFunctionOverloads.ts
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rename from tests/cases/fourslash_old/referencesForFunctionOverloads.ts
rename to tests/cases/fourslash/referencesForFunctionOverloads.ts
diff --git a/tests/cases/fourslash_old/referencesForFunctionParameter.ts b/tests/cases/fourslash/referencesForFunctionParameter.ts
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rename from tests/cases/fourslash_old/referencesForFunctionParameter.ts
rename to tests/cases/fourslash/referencesForFunctionParameter.ts
diff --git a/tests/cases/fourslash_old/referencesForGlobals.ts b/tests/cases/fourslash/referencesForGlobals.ts
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rename from tests/cases/fourslash_old/referencesForGlobals.ts
rename to tests/cases/fourslash/referencesForGlobals.ts
diff --git a/tests/cases/fourslash_old/referencesForIllegalAssignment.ts b/tests/cases/fourslash/referencesForIllegalAssignment.ts
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rename from tests/cases/fourslash_old/referencesForIllegalAssignment.ts
rename to tests/cases/fourslash/referencesForIllegalAssignment.ts
diff --git a/tests/cases/fourslash_old/referencesForOverrides.ts b/tests/cases/fourslash/referencesForOverrides.ts
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rename from tests/cases/fourslash_old/referencesForOverrides.ts
rename to tests/cases/fourslash/referencesForOverrides.ts
diff --git a/tests/cases/fourslash_old/referencesForStatic.ts b/tests/cases/fourslash/referencesForStatic.ts
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rename from tests/cases/fourslash_old/referencesForStatic.ts
rename to tests/cases/fourslash/referencesForStatic.ts
diff --git a/tests/cases/fourslash_old/referencesForStaticsAndMembersWithSameNames.ts b/tests/cases/fourslash/referencesForStaticsAndMembersWithSameNames.ts
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rename from tests/cases/fourslash_old/referencesForStaticsAndMembersWithSameNames.ts
rename to tests/cases/fourslash/referencesForStaticsAndMembersWithSameNames.ts
diff --git a/tests/cases/fourslash_old/remoteGetReferences.ts b/tests/cases/fourslash/remoteGetReferences.ts
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rename from tests/cases/fourslash_old/remoteGetReferences.ts
rename to tests/cases/fourslash/remoteGetReferences.ts