[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/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