FIR Java: implement "appendErasedType" thus adding predefined signatures

Related to KT-29937

idea/testData/fir/multiModule/fullWithJavaPredefinedSignature/extraDump.java.txt

@@ -0,0 +1,2 @@
+<T> public abstract interface MyIterable : R|java/lang/Iterable<T>| {
+}

idea/testData/fir/multiModule/fullWithJavaPredefinedSignature/jvm/MyIterable.java

@@ -0,0 +1 @@
+public interface MyIterable<T> extends Iterable<T>

idea/testData/fir/multiModule/fullWithJavaPredefinedSignature/jvm/test.kt

@@ -0,0 +1,6 @@
+interface UseIterable : MyIterable<String> {
+    fun test() {
+        val it = iterator()
+        val split = spliterator()
+    }
+}

idea/testData/fir/multiModule/fullWithJavaPredefinedSignature/jvm/test.txt

@@ -0,0 +1,8 @@
+FILE: test.kt
+    public abstract interface UseIterable : R|MyIterable<kotlin/String>| {
+        public open function test(): R|kotlin/Unit| {
+            val it: R|error: Not supported: FirImplicitTypeRefImpl| = R|FakeOverride<java/lang/Iterable.iterator: R|ft<kotlin/collections/MutableIterator<ft<T, T?>>, kotlin/collections/Iterator<ft<T, T?>>?>|!>|()
+            val split: R|error: Not supported: FirImplicitTypeRefImpl| = R|FakeOverride<java/lang/Iterable.spliterator: R|ft<java/util/Spliterator<ft<T, T>>, java/util/Spliterator<ft<T, T>>>|>|()
+        }
+
+    }