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/common/constructorCall.kt

@@ -0,0 +1,15 @@
+fun test() {
+    val x: /*T2@*/X</*T1@*/Int> = X</*T0@*/Int>(10/*LIT*/)/*X<T0@Int>*/
+    val x: /*T5@*/X</*T4@*/Int> = X</*T3@*/Int>(10/*LIT*/, 20/*LIT*/)/*X<T3@Int>*/
+}
+
+class X<T>(x: /*T6@*/T) {
+    constructor(x: /*T7@*/T, y: /*T8@*/Int): this(x/*T7@T*/)
+}
+
+//LOWER <: T0 due to 'PARAMETER'
+//T1 := T0 due to 'INITIALIZER'
+//LOWER <: T3 due to 'PARAMETER'
+//LOWER <: T8 due to 'PARAMETER'
+//T4 := T3 due to 'INITIALIZER'
+//T7 <: T6 due to 'PARAMETER'