Adjust testData: get rid of obsolete annotations

compiler/testData/compileKotlinAgainstKotlin/InlinedConstants.A.kt

@@ -14,5 +14,5 @@ public val c: Char = '\u03c0' // pi symbol
 
 public val str: String = ":)"
 
-[Retention(RetentionPolicy.RUNTIME)]
+@Retention(RetentionPolicy.RUNTIME)
 public annotation class AnnotationClass(public val value: String)

compiler/testData/compileKotlinAgainstKotlin/PlatformNames.A.kt

@@ -2,11 +2,11 @@ package lib
 
 import kotlin.platform.*
 
-[platformName("bar")]
+@platformName("bar")
 fun foo() = "foo"
 
 var v: Int = 1
-    [platformName("vget")]
+    @platformName("vget")
     get
-    [platformName("vset")]
+    @platformName("vset")
     set