Remove backend tests on old inference

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

compiler/testData/codegen/box/funInterface/basicFunInterfaceConversion.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
-
 fun interface Foo {
     fun invoke(): String
 }
@@ -8,4 +6,4 @@ fun foo(f: Foo) = f.invoke()
 
 fun box(): String {
     return foo { "OK" }
-}
+}

compiler/testData/codegen/box/funInterface/basicFunInterfaceConversionClash.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
-
 // FILE: lib.kt
 
 fun interface Foo {
@@ -26,4 +24,4 @@ inline fun bar2(): String {
 
 // FILE: main.kt
 
-fun box(): String = bar1() + bar2()
+fun box(): String = bar1() + bar2()

compiler/testData/codegen/box/funInterface/castFromAny.kt

@@ -1,6 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
-
-
 fun interface KRunnable {
     fun invoke()
 }

compiler/testData/codegen/box/funInterface/funConversionInVararg.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument
-
 fun interface MyRunnable {
     fun run()
 }

compiler/testData/codegen/box/funInterface/funInterfaceInheritance.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
-
 fun interface Base {
     fun doStuff(): String
 }
@@ -26,4 +24,4 @@ fun box(): String {
     if (runProxy { 10 } != "10") return "fail2"
 
     return runBase { "OK" }
-}
+}

compiler/testData/codegen/box/funInterface/inlinedSamWrapper.kt

@@ -1,4 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
 // WITH_RUNTIME
 
 fun interface MyRunnable {

compiler/testData/codegen/box/funInterface/multimodule.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
-
 // MODULE: m1
 // FILE: m1.kt
 
@@ -42,4 +40,4 @@ fun box(): String {
     if (rn2Inline { "inline" } != "inline") return "fail 4"
 
     return rn2 { "OK" }
-}
+}

compiler/testData/codegen/box/funInterface/nullableSam.kt

@@ -1,4 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
 // WITH_RUNTIME
 
 fun interface KRunnable {

compiler/testData/codegen/box/funInterface/partialSam.kt

@@ -1,4 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
 // WITH_RUNTIME
 
 fun interface Fn<T, R> {
@@ -38,4 +37,4 @@ fun box(): String {
     if (x != "LFoo42239 Bar1LFoo Foo42239 LBar1Foo") return x
 
     return "OK"
-}
+}

compiler/testData/codegen/box/funInterface/primitiveConversions.kt

@@ -1,5 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
-
 // This test should check argument coercion between the SAM and the lambda.
 // For now it checks that Char is boxed in JS
 
@@ -40,4 +38,4 @@ fun box(): String {
     if (c6 !is Char || c6 != '6') return "fail6"
 
     return "OK"
-}
+}

compiler/testData/codegen/box/funInterface/receiverEvaluatedOnce.kt

@@ -1,4 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
 // WITH_RUNTIME
 
 fun interface KRunnable {

compiler/testData/codegen/box/funInterface/suspendFunInterfaceConversionCodegen.kt

@@ -1,4 +1,3 @@
-// !LANGUAGE: +NewInference +FunctionalInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions
 // WITH_COROUTINES
 // WITH_RUNTIME