Introduce modules to merge 3, 4, and 5 inline expectation tests

Author: jketema

shared/util/codeql/util/test/InlineExpectationsTest.qll

@@ -396,6 +396,63 @@ module Make<InlineExpectationsTestSig Impl> {
     }
   }
 
+  /**
+   * A module that merges three test signatures.
+   */
+  module MergeTests3<TestSig TestImpl1, TestSig TestImpl2, TestSig TestImpl3> implements TestSig {
+    private module M = MergeTests<MergeTests<TestImpl1, TestImpl2>, TestImpl3>;
+
+    string getARelevantTag() { result = M::getARelevantTag() }
+
+    predicate hasActualResult(Impl::Location location, string element, string tag, string value) {
+      M::hasActualResult(location, element, tag, value)
+    }
+
+    predicate hasOptionalResult(Impl::Location location, string element, string tag, string value) {
+      M::hasOptionalResult(location, element, tag, value)
+    }
+  }
+
+  /**
+   * A module that merges four test signatures.
+   */
+  module MergeTests4<TestSig TestImpl1, TestSig TestImpl2, TestSig TestImpl3, TestSig TestImpl4>
+    implements TestSig
+  {
+    private module M = MergeTests<MergeTests3<TestImpl1, TestImpl2, TestImpl3>, TestImpl4>;
+
+    string getARelevantTag() { result = M::getARelevantTag() }
+
+    predicate hasActualResult(Impl::Location location, string element, string tag, string value) {
+      M::hasActualResult(location, element, tag, value)
+    }
+
+    predicate hasOptionalResult(Impl::Location location, string element, string tag, string value) {
+      M::hasOptionalResult(location, element, tag, value)
+    }
+  }
+
+  /**
+   * A module that merges five test signatures.
+   */
+  module MergeTests5<
+    TestSig TestImpl1, TestSig TestImpl2, TestSig TestImpl3, TestSig TestImpl4, TestSig TestImpl5>
+    implements TestSig
+  {
+    private module M =
+      MergeTests<MergeTests4<TestImpl1, TestImpl2, TestImpl3, TestImpl4>, TestImpl5>;
+
+    string getARelevantTag() { result = M::getARelevantTag() }
+
+    predicate hasActualResult(Impl::Location location, string element, string tag, string value) {
+      M::hasActualResult(location, element, tag, value)
+    }
+
+    predicate hasOptionalResult(Impl::Location location, string element, string tag, string value) {
+      M::hasOptionalResult(location, element, tag, value)
+    }
+  }
+
   private module LegacyImpl implements TestSig {
     string getARelevantTag() { result = any(InlineExpectationsTest t).getARelevantTag() }