Remove backend tests on old inference

Also remove any mentions of NewInference, and rename some tests.

compiler/testData/codegen/box/callableReference/adaptedReferences/bothWithCoercionToUnit.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-
 fun foo(s: String = "kotlin", vararg t: String): Boolean {
     if (s != "kotlin") throw AssertionError(s)
     if (t.size != 0) throw AssertionError(t.size.toString())

compiler/testData/codegen/box/callableReference/adaptedReferences/boundReferences.kt

@@ -1,4 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
 // WITH_RUNTIME
 
 import kotlin.test.assertEquals

compiler/testData/codegen/box/callableReference/adaptedReferences/defaultAfterVararg.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-
 fun foo(vararg a: String, result: String = "OK"): String =
         if (a.size == 0) result else "Fail"
 

compiler/testData/codegen/box/callableReference/adaptedReferences/defaultWithGenericExpectedType.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-
 fun foo(x: String, y: Char = 'K'): String = x + y
 
 fun <T, U> call(f: (T) -> U, x: T): U = f(x)

compiler/testData/codegen/box/callableReference/adaptedReferences/emptyVarargAndDefault.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-
 fun foo(x: String = "O", vararg y: String): String =
         if (y.size == 0) x + "K" else "Fail"
 

compiler/testData/codegen/box/callableReference/adaptedReferences/inlineDefault.kt

@@ -1,6 +1,5 @@
 // IGNORE_BACKEND: WASM
 // WASM_MUTE_REASON: STDLIB_TEXT
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
 // WITH_RUNTIME
 
 inline fun foo(mkString: () -> String): String =

compiler/testData/codegen/box/callableReference/adaptedReferences/inlineVararg.kt

@@ -1,6 +1,5 @@
 // IGNORE_BACKEND: WASM
 // WASM_MUTE_REASON: IGNORED_IN_JS
-// !LANGUAGE: +NewInference
 // WITH_RUNTIME
 
 inline fun foo(mkString: (Char, Char) -> String): String =
@@ -10,4 +9,4 @@ fun bar (vararg xs: Char) =
         xs.concatToString()
 
 fun box(): String = foo(::bar)
-// -> { a, b -> bar(a, b) }
+// -> { a, b -> bar(a, b) }

compiler/testData/codegen/box/callableReference/adaptedReferences/inlineVarargAndDefault.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-
 fun foo(vararg l: Long, s: String = "OK"): String =
         if (l.size == 0) s else "Fail"
 

compiler/testData/codegen/box/callableReference/adaptedReferences/inlineVarargInts.kt

@@ -1,4 +1,3 @@
-// !LANGUAGE: +NewInference
 // WITH_RUNTIME
 
 inline fun foo(x: (Int, Int) -> Int): Int =

compiler/testData/codegen/box/callableReference/adaptedReferences/innerConstructorWithVararg.kt

@@ -1,6 +1,3 @@
-
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-
 class Outer(val o: String) {
     inner class Inner1(val i: Int, vararg v: String) {
         val result = "I1" + o + i + if (v.size == 0) "E" else v[0]

compiler/testData/codegen/box/callableReference/adaptedReferences/largeVararg.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference
-
 fun foo(
     f: (
         Int, Int, Int, Int, Int, Int, Int, Int, Int, Int,

compiler/testData/codegen/box/callableReference/adaptedReferences/localFunctionWithDefault.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-
 fun call0(f: (String) -> String, x: String): String = f(x)
 fun call1(f: (String, String) -> String, x: String, y: String): String = f(x, y)
 fun call2(f: (String, String, String) -> String, x: String, y: String, z: String): String = f(x, y, z)
@@ -27,4 +25,4 @@ fun box(): String {
     val r3 = call2(::bar, "8", "9", "10")
     if (r3 != "7829") return "FAIL3 $r3"
     return "OK"
-}
+}

compiler/testData/codegen/box/callableReference/adaptedReferences/manyDefaultsAndVararg.kt

@@ -1,4 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
 // WITH_RUNTIME
 
 import kotlin.test.assertEquals

compiler/testData/codegen/box/callableReference/adaptedReferences/simpleDefaultArgument.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-
 fun foo(x: String, y: String = "K"): String = x + y
 
 fun call(f: (String) -> String, x: String): String = f(x)

compiler/testData/codegen/box/callableReference/adaptedReferences/simpleEmptyVararg.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference
-
 fun foo(x: String, vararg y: String): String =
         if (y.size == 0) x + "K" else "Fail"
 

compiler/testData/codegen/box/callableReference/adaptedReferences/unboundReferences.kt

@@ -1,4 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
 // WITH_RUNTIME
 
 import kotlin.test.assertEquals

compiler/testData/codegen/box/callableReference/adaptedReferences/varargViewedAsPrimitiveArray.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference
-
 fun sum(vararg args: Int): Int {
     var result = 0
     for (arg in args)

compiler/testData/codegen/box/callableReference/adaptedReferences/varargWithDefaultValue.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-
 fun foo(x: Int, s: Int, vararg y: CharSequence = arrayOf("Aaa")): String =
         if (y.size == s && y[0].length == x) "OK" else "Fail"