FIR: fix type index computation during enhancement

1. in/out type parameters count;
2. star projections take up 1 space in the tree.

compiler/testData/diagnostics/foreignAnnotationsTests/java8Tests/jspecify/strictMode/TypeArgumentsFromParameterBounds.fir.kt

@@ -35,7 +35,8 @@ fun main(
     a: A, b: B
 ): Unit {
     a.bar(aNotNullNotNullNotNull)
-    a.bar(aNotNullNotNullNull)
+    // jspecify_nullness_mismatch
+    a.bar(<!ARGUMENT_TYPE_MISMATCH!>aNotNullNotNullNull<!>)
     // jspecify_nullness_mismatch
     a.bar(<!ARGUMENT_TYPE_MISMATCH!>aNotNullNullNotNull<!>)
     // jspecify_nullness_mismatch

compiler/testData/diagnostics/foreignAnnotationsTests/java8Tests/jspecify/strictMode/kt47422.fir.kt

@@ -90,7 +90,8 @@ fun test2() {
     // String in Foo is not null
     isNotNullAndNullableStringInFoo(
         UtilNullMarked.getFooOfString(),
-        UtilNullMarked.getFooOfString()
+        // jspecify_nullness_mismatch
+        <!ARGUMENT_TYPE_MISMATCH!>UtilNullMarked.getFooOfString()<!>
     )
 }
 

compiler/testData/diagnostics/foreignAnnotationsTests/java8Tests/jspecify/strictMode/kt47437.fir.kt

@@ -14,5 +14,5 @@ public class Foo<T extends @Nullable Object> {
 
 // FILE: main.kt
 fun test(): Foo<String> {
-    return <!DEBUG_INFO_EXPRESSION_TYPE("Foo<kotlin.String..kotlin.String?!>")!>Foo.create()<!>
+    return <!DEBUG_INFO_EXPRESSION_TYPE("Foo<kotlin.String>")!>Foo.create()<!>
 }

compiler/testData/diagnostics/foreignAnnotationsTests/java8Tests/jspecify/warnMode/TypeArgumentsFromParameterBounds.fir.kt

@@ -34,7 +34,7 @@ fun main(
     a: A, b: B
 ): Unit {
     a.bar(aNotNullNotNullNotNull)
-    a.bar(aNotNullNotNullNull)
+    a.bar(<!ARGUMENT_TYPE_MISMATCH!>aNotNullNotNullNull<!>)
     a.bar(<!ARGUMENT_TYPE_MISMATCH!>aNotNullNullNotNull<!>)
     a.bar(<!ARGUMENT_TYPE_MISMATCH!>aNotNullNullNull<!>)