JVM_IR: Minor. Unmute tests

compiler/testData/codegen/bytecodeText/boxing/crossinlineSuspend.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +ReleaseCoroutines
-// IGNORE_BACKEND: JVM_IR
 
 inline fun inlineMe(crossinline c: suspend () -> Int): suspend () -> Int {
     val i: suspend () -> Int = { c() + c() }

compiler/testData/codegen/bytecodeText/coroutines/crossinlineSuspendContinuation_1_3.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 // WITH_COROUTINES
 
 import helpers.*

compiler/testData/codegen/bytecodeText/coroutines/stateMachine/kt25893.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 class Handler(val func: suspend (Any) -> Unit)
 
 inline fun createHandler(crossinline handler: suspend (Any) -> Unit): Handler {

compiler/testData/codegen/bytecodeText/coroutines/stateMachine/withTypeParameter.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 fun <T> builder(c: suspend () -> T): T = TODO()
 
 class Test {