[TEST] Fix long literal in testdata broken in 4374c06

compiler/testData/codegen/box/casts/literalExpressionAsGenericArgument/binaryExpressionCast.kt

@@ -1,7 +1,7 @@
 class Box<T>(val value: T)
 
 fun box() : String {
-    val b = Box<Long>(2l * 3)
+    val b = Box<Long>(2L * 3)
     val expected: Long? = 6L
     return if (b.value == expected) "OK" else "fail"
 }

compiler/testData/codegen/box/casts/literalExpressionAsGenericArgument/labeledExpressionCast.kt

@@ -1,7 +1,7 @@
 class Box<T>(val value: T)
 
 fun box() : String {
-    val b = Box<Long>(x@ (1l + 2))
+    val b = Box<Long>(x@ (1L + 2))
     val expected: Long? = 3L
     return if (b.value == expected) "OK" else "fail"
 }