[FIR] Fix projection of Comparable supertype for ILT

#KT-39048 Fixed

compiler/testData/codegen/box/inlineClasses/kt26103_contravariantUnderlyingType.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +InlineClasses
-// IGNORE_BACKEND_FIR: JVM_IR
 // WITH_RUNTIME
 
 inline class GCmp<T>(val xc: Comparable<T>)

compiler/testData/codegen/box/primitiveTypes/unboxComparable.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun foo(x: Int) = x
 
 fun bar(x: Comparable<Int>) = if (x is Int) foo(x) else 0

compiler/testData/codegen/box/ranges/contains/inComparableRange.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // IGNORE_BACKEND: JS_IR
 // IGNORE_BACKEND: JS_IR_ES6
 // TODO: muted automatically, investigate should it be ran for JS or not