New J2K: separate nullability inference from common one & nullability bug fixes

It will be needed for structure mutability inference

#KT-21467 fixed
#KT-32609 fixed
#KT-32572 fixed
#KT-24677 fixed

nj2k/testData/inference/nullability/callExternallyAnnotatedJavaFunction.kt

@@ -0,0 +1,11 @@
+import java.util.Arrays.asList
+
+fun test() {
+    val x: /*T2@*/List</*T1@*/Int> = asList</*T0@*/Int>(1/*LIT*/)/*MutableList<T0@Int>!!L*/
+    val i: /*T3@*/Int = Integer/*LIT*/.valueOf(""/*LIT*/)/*Int!!L*/
+}
+
+//LOWER <: T0 due to 'PARAMETER'
+//T1 := T0 due to 'INITIALIZER'
+//LOWER <: T2 due to 'INITIALIZER'
+//LOWER <: T3 due to 'INITIALIZER'