Add tests for inheritance loop and members inheritance

Author: pikinier20

scala3doc-testcases/src/tests/inheritanceLoop.scala

@@ -0,0 +1,18 @@
+package tests
+package inheritanceLoop
+
+class A
+{
+  type I = Int
+  object X
+  class B extends C
+  {
+    class D extends C
+    {
+      class E extends C
+    }
+  }
+}
+
+
+class C extends A

scala3doc-testcases/src/tests/inheritedMembers1.scala

@@ -0,0 +1,17 @@
+package tests
+package inheritedMembers1
+
+
+class A
+{
+    def A: String
+      = ???
+    val B: Int
+      = ???
+    object X
+    trait Z
+    given B
+    type I = Int
+    /*<-*/extension (a: A) /*->*/def extension: String
+      = ???
+}

scala3doc-testcases/src/tests/inheritedMembers2.scala

@@ -0,0 +1,7 @@
+package tests
+package inheritedMembers2
+
+import tests.inheritedMembers1.A
+
+class F extends A
+

scala3doc/test/dotty/dokka/SignatureTests.scala

@@ -50,3 +50,8 @@ class OpaqueTypes extends SingleFileTest("opaqueTypes", SingleFileTest.all)
 // class GivenSignatures extends SingleFileTest("givenSignatures", SingleFileTest.all)
 
 class Annotations extends SingleFileTest("annotations", SingleFileTest.all)
+
+class InheritanceLoop extends SingleFileTest("inheritanceLoop", SingleFileTest.all)
+
+class InheritedMembers extends MultipleFileTest(List("inheritedMembers1", "inheritedMembers2"), List("inheritedMembers2"), MultipleFileTest.all.filter(_ != "class"))
+