K2: add various tests describing current KT-62554 / KT-63242 behavior

compiler/testData/codegen/box/fir/primitiveDoubleJavaKotlinIntersection.kt

@@ -0,0 +1,28 @@
+// TARGET_BACKEND: JVM_IR
+// IGNORE_BACKEND_K2: JVM_IR
+// IGNORE_LIGHT_ANALYSIS
+// (Unresolved reference: B supertype in C declaration)
+// ISSUE: KT-63242
+// FILE: box.kt
+
+private open class C : A<Double?>, B, BImpl() {
+    override fun foo(d: Double?): String = "Fail: C"
+}
+
+fun box(): String =
+    C().foo(0.0)
+
+// FILE: A.java
+interface A<T> {
+    String foo(T value);
+}
+
+interface B {
+    String foo(double value);
+}
+
+class BImpl {
+    public String foo(double value) {
+        return "OK";
+    }
+}