Merge boxWithStdlib testData into box, delete BoxWithStdlib test

compiler/testData/codegen/box/storeStackBeforeInline/primitiveMerge.kt

@@ -0,0 +1,18 @@
+// WITH_RUNTIME
+
+import kotlin.test.assertEquals
+
+fun bar() : Boolean = true
+
+fun foobar1(x: Boolean, y: String, z: String) = x.toString() + y + z
+fun foobar2(x: Any, y: String, z: String) = x.toString() + y + z
+
+inline fun foo() = "-"
+
+fun box(): String {
+    val result1 = foobar1(if (1 == 1) true else bar(), foo(), "OK")
+    val result2 = foobar2(if (1 == 1) "true" else arrayOf("false"), foo(), "OK")
+    assertEquals("true-OK", result1)
+    assertEquals("true-OK", result2)
+    return "OK"
+}