[JS IR] Fix IC invalidation for fake override inline functions

The patch enables the direct dependency between
 fake override inline function and its implementation from the base class.

 Because klibs do not keep a signature of fake override implementation,
 incremental cache can not use the signature index,
 therefore the signature is serialized to a cache file as is.

^KT-51896 Fixed

js/js.translator/testData/incremental/invalidation/fakeOverrideInlineFunction/lib1/l1.1.kt

@@ -0,0 +1,7 @@
+abstract class ClassA {
+    inline fun <reified T> Any.castTo(): T? = (this as? T) ?: "OTHER ${this as? Int}" as T
+    abstract fun test1(): String?
+    abstract fun test2(): String?
+
+    inline fun fakeOverrideFunction() = 0
+}

js/js.translator/testData/incremental/invalidation/fakeOverrideInlineFunction/lib1/l1.2.kt

@@ -0,0 +1,7 @@
+abstract class ClassA {
+    inline fun <reified T> Any.castTo(): T? = (this as? T) ?: "OTHER ${this as? Int}" as T
+    abstract fun test1(): String?
+    abstract fun test2(): String?
+
+    inline fun fakeOverrideFunction() = 2
+}

js/js.translator/testData/incremental/invalidation/fakeOverrideInlineFunction/lib1/l1.kt

@@ -0,0 +1,7 @@
+abstract class ClassA {
+    inline fun <reified T> Any.castTo(): T? = this as? T
+    abstract fun test1(): String?
+    abstract fun test2(): String?
+
+    inline fun fakeOverrideFunction() = 0
+}

js/js.translator/testData/incremental/invalidation/fakeOverrideInlineFunction/lib1/module.info

@@ -0,0 +1,10 @@
+STEP 0:
+    added file: l1.kt
+STEP 1:
+    modifications:
+        U : l1.1.kt -> l1.kt
+    modified ir: l1.kt
+STEP 2:
+    modifications:
+        U : l1.2.kt -> l1.kt
+    modified ir: l1.kt

js/js.translator/testData/incremental/invalidation/fakeOverrideInlineFunction/lib2/l2.kt

@@ -0,0 +1,4 @@
+class ClassB: ClassA() {
+    override fun test1() = "ClassB::test1".castTo<String>()
+    override fun test2() = 1.castTo<String>()
+}

js/js.translator/testData/incremental/invalidation/fakeOverrideInlineFunction/lib2/module.info

@@ -0,0 +1,8 @@
+STEP 0:
+    dependencies: lib1
+    added file: l2.kt
+STEP 1:
+    dependencies: lib1
+    updated inline imports: l2.kt
+STEP 2:
+    dependencies: lib1

js/js.translator/testData/incremental/invalidation/fakeOverrideInlineFunction/main/m.kt

@@ -0,0 +1,39 @@
+inline fun callIt(f: () -> Int) = f()
+
+fun box(stepId: Int): String {
+    val a = object : ClassA() {
+        override fun test1() = "object::test1".castTo<String>()
+        override fun test2() = 2.castTo<String>()
+    }
+
+    val b = ClassB()
+
+    if (a.test1() != "object::test1") return "Fail 1"
+    if (b.test1() != "ClassB::test1") return "Fail 2"
+
+    when (stepId) {
+        0 -> {
+            if (a.test2() != null) return "Fail 0-1"
+            if (b.test2() != null) return "Fail 0-2"
+
+            if (a.fakeOverrideFunction() != 0) return "Fail 0-3"
+            if (b.fakeOverrideFunction() != 0) return "Fail 0-4"
+
+            if (callIt(a::fakeOverrideFunction) != 0) return "Fail 0-5"
+            if (callIt(b::fakeOverrideFunction) != 0) return "Fail 0-6"
+        }
+        1 -> {
+            if (a.test2() != "OTHER 2") return "Fail 1-1"
+            if (b.test2() != "OTHER 1") return "Fail 1-2"
+        }
+        2 -> {
+            if (a.fakeOverrideFunction() != 2) return "Fail 2-1"
+            if (b.fakeOverrideFunction() != 2) return "Fail 2-2"
+
+            if (callIt(a::fakeOverrideFunction) != 2) return "Fail 2-3"
+            if (callIt(b::fakeOverrideFunction) != 2) return "Fail 2-4"
+        }
+        else -> return "Unknown"
+    }
+    return "OK"
+}

js/js.translator/testData/incremental/invalidation/fakeOverrideInlineFunction/main/module.info

@@ -0,0 +1,6 @@
+STEP 0:
+    dependencies: lib1, lib2
+    added file: m.kt
+STEP 1..2:
+    dependencies: lib1, lib2
+    updated inline imports: m.kt

js/js.translator/testData/incremental/invalidation/fakeOverrideInlineFunction/project.info

@@ -0,0 +1,11 @@
+MODULES: lib1, lib2, main
+
+STEP 0:
+    libs: lib1, lib2, main
+    dirty js: lib1, lib2, main
+STEP 1:
+    libs: lib1, lib2, main
+    dirty js: lib1, lib2, main
+STEP 2:
+    libs: lib1, lib2, main
+    dirty js: lib1, main