Support member access in tags

Currently tags are only recognized when the tag is specified by string
literal, i.e: @tag("foo").

Support Tags added via the staticMember Tag.Kind.

Author: plemarquand

Sources/SourceKitLSP/Swift/SwiftTestingScanner.swift

@@ -95,7 +95,10 @@ struct TestingAttributeData {
           return false
         }
       }.flatMap(\.arguments)
-      .compactMap { $0.expression.as(StringLiteralExprSyntax.self)?.representedLiteralValue }
+      .compactMap {
+          $0.expression.as(StringLiteralExprSyntax.self)?.representedLiteralValue ??
+          $0.expression.as(MemberAccessExprSyntax.self)?.declName.baseName.text
+      }
 
     self.isDisabled = traitArguments.lazy
       .compactMap { $0.as(FunctionCallExprSyntax.self) }

Tests/SourceKitLSPTests/DocumentTestDiscoveryTests.swift

@@ -595,7 +595,7 @@ final class DocumentTestDiscoveryTests: XCTestCase {
 
       1️⃣@Suite(.tags("Suites"))
       struct MyTests {
-        2️⃣@Test(.tags("one", "two"))
+        2️⃣@Test(.tags("one", "two", .red, .blue))
         func oneIsTwo() {
           #expect(1 == 2)
         }3️⃣
@@ -622,7 +622,7 @@ final class DocumentTestDiscoveryTests: XCTestCase {
               style: TestStyle.swiftTesting,
               location: Location(uri: uri, range: positions["2️⃣"]..<positions["3️⃣"]),
               children: [],
-              tags: [TestTag(id: "one"), TestTag(id: "two")]
+              tags: [TestTag(id: "one"), TestTag(id: "two"), TestTag(id: "red"), TestTag(id: "blue")]
             )
           ],
           tags: [TestTag(id: "Suites")]