Migrate boxInline tests to new multi-file framework

compiler/testData/codegen/boxInline/smap/resolve/inlineComponent.2.kt

@@ -1,9 +0,0 @@
-package zzz
-
-public class A(val a: Int, val b: Int)
-
-operator inline fun A.component1() = a
-
-operator inline fun A.component2() = b
-
-//SMAP ABSENT

compiler/testData/codegen/boxInline/smap/resolve/inlineComponent.kt

@@ -1,3 +1,17 @@
+// FILE: 1.kt
+
+package zzz
+
+public class A(val a: Int, val b: Int)
+
+operator inline fun A.component1() = a
+
+operator inline fun A.component2() = b
+
+//SMAP ABSENT
+
+// FILE: 2.kt
+
 import zzz.*
 
 fun box(): String {
@@ -18,4 +32,4 @@ fun box(): String {
 //*L
 //1#1,21:1
 //5#2,3:22
-//*E
+//*E

compiler/testData/codegen/boxInline/smap/resolve/inlineIterator.2.kt

@@ -1,7 +0,0 @@
-package zzz
-
-public class A(val p: Int)
-
-operator inline fun A.iterator() = (1..p).iterator()
-
-//SMAP ABSENT

compiler/testData/codegen/boxInline/smap/resolve/inlineIterator.kt

@@ -1,3 +1,15 @@
+// FILE: 1.kt
+
+package zzz
+
+public class A(val p: Int)
+
+operator inline fun A.iterator() = (1..p).iterator()
+
+//SMAP ABSENT
+
+// FILE: 2.kt
+
 import zzz.*
 
 fun box(): String {
@@ -21,4 +33,4 @@ fun box(): String {
 //*L
 //1#1,24:1
 //5#2:25
-//*E
+//*E