[NI] Turn off KnownTypeParameterSubstitutor for NI

The main consequence of it is that TYPE_MISMATCH range for control
structures became wider.

Also, for extra safety, don't change behaviour of OI.

compiler/testData/diagnostics/tests/when/kt9929.kt

@@ -1,10 +1,10 @@
 // !WITH_NEW_INFERENCE
-val test: Int = if (true) <!NI;TYPE_MISMATCH, NI;TYPE_MISMATCH!>{
+val test: Int = <!NI;TYPE_MISMATCH, NI;TYPE_MISMATCH, NI;TYPE_MISMATCH!>if (true) {
     when (2) {
         1 -> 1
         else -> <!OI;NULL_FOR_NONNULL_TYPE!>null<!>
     }
-}<!>
+}
 else {
     2
-}
+}<!>

compiler/testData/diagnostics/tests/when/kt9972.kt

@@ -1,11 +1,11 @@
 // !WITH_NEW_INFERENCE
 fun test1(): Int {
-    val x: String = if (true) <!NI;TYPE_MISMATCH, NI;TYPE_MISMATCH, NI;TYPE_MISMATCH, NI;TYPE_MISMATCH!>{
+    val x: String = <!NI;TYPE_MISMATCH, NI;TYPE_MISMATCH, NI;TYPE_MISMATCH, NI;TYPE_MISMATCH!>if (true) {
         when {
             true -> <!OI;TYPE_MISMATCH!>Any()<!>
             else -> <!OI;NULL_FOR_NONNULL_TYPE!>null<!>
         }
-    }<!> else ""
+    } else ""<!>
     return x.hashCode()
 }