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/lambdaAsParameter.kt

@@ -0,0 +1,11 @@
+fun test() {
+    nya</*T2@*/Boolean>({ a: /*T0@*/Int, b: /*T1@*/Boolean -> ""/*LIT*/ }/*Function2<T0@Int, T1@Boolean, T7@String>*/)
+}
+
+fun <T> nya(x: /*T6@*/Function2</*T3@*/T, /*T4@*/Boolean, /*T5@*/String>) {
+}
+
+//LOWER <: T7 due to 'RETURN'
+//T2 <: T0 due to 'PARAMETER'
+//T4 <: T1 due to 'PARAMETER'
+//T7 <: T5 due to 'PARAMETER'