JVM_IR: prefer to move, not copy, suspend lambda bodies

Copying breaks reflection metadata.

compiler/testData/codegen/box/reflection/lambdaClasses/reflectOnLambdaInSuspend.kt

@@ -0,0 +1,19 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+// TARGET_BACKEND: JVM
+// WITH_REFLECT
+// WITH_COROUTINES
+// FILE: a.kt
+
+import helpers.*
+import kotlin.coroutines.*
+import kotlin.reflect.jvm.reflect
+
+suspend fun f() = { OK: String -> }
+
+fun box(): String {
+    lateinit var x: (String) -> Unit
+    suspend {
+        x = f()
+    }.startCoroutine(EmptyContinuation)
+    return x.reflect()?.parameters?.singleOrNull()?.name ?: "null"
+}

compiler/testData/codegen/box/reflection/lambdaClasses/reflectOnLambdaInSuspendLambda.kt

@@ -0,0 +1,17 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+// TARGET_BACKEND: JVM
+// WITH_REFLECT
+// WITH_COROUTINES
+// FILE: a.kt
+
+import helpers.*
+import kotlin.coroutines.*
+import kotlin.reflect.jvm.reflect
+
+fun box(): String {
+    lateinit var x: (String) -> Unit
+    suspend {
+        x = { OK: String -> }
+    }.startCoroutine(EmptyContinuation)
+    return x.reflect()?.parameters?.singleOrNull()?.name ?: "null"
+}