fix tests that used manipulated symbol graphs and were missing parent-child relationships relevant for new collision detection

The test used a manipulated Symbol Graph File with a duplicate symbol. However, the duplicate was not connected to the parent of the original. Thus, the new algorithm anticipated that its MyClass path component would be cut out. Therefore, the two initializers had different paths that no longer conflicted.

Author: theMomax

Sources/SwiftDocC/Infrastructure/DocumentationContext.swift

@@ -2578,7 +2578,7 @@ public class DocumentationContext: DocumentationContextDataProviderDelegate {
         if let match = referencesIndex[path] { return match }
 
         // Check if `destination` is a known absolute symbol path...
-        if !path.hasPrefix("/") {
+        if !path.hasPrefix("/") && parent.pathComponents.count > 2 {
             // ...in the parent's module
             let parentModule = parent.pathComponents[2]
             let referenceURLString = "doc://\(parent.bundleIdentifier)/documentation/\(parentModule)/\(path)"

Tests/SwiftDocCTests/Infrastructure/DocumentationContext/DocumentationContextTests.swift

@@ -1758,6 +1758,11 @@ let expected = """
 
             text = text.replacingOccurrences(of: "\"relationships\" : [", with: """
             "relationships" : [
+            {
+              "source" : "s:7SideKit0A5ClassC10testSV",
+              "target" : "s:7SideKit0A5ClassC",
+              "kind" : "memberOf"
+            },
             {
               "source" : "s:7SideKit0A5ClassC10testE",
               "target" : "s:7SideKit0A5ClassC",

Tests/SwiftDocCTests/Test Bundles/TestBundle.docc/mykit-iOS.symbols.json

@@ -552,6 +552,11 @@
       "source" : "s:5MyKit0A5ClassCACycfc",
       "target" : "s:5MyKit0A5ClassC",
       "kind" : "memberOf"
+    },
+    {
+      "source" : "s:5MyKit0A5ClassCACycfcDUPLICATE",
+      "target" : "s:5MyKit0A5ClassC",
+      "kind" : "memberOf"
     }
   ]
 }