FIR: store all annotationContainers in checker context

compiler/testData/diagnostics/testsWithStdLib/experimental/useExperimentalOnStatement.kt

@@ -0,0 +1,19 @@
+// FIR_IDENTICAL
+// !USE_EXPERIMENTAL: kotlin.RequiresOptIn
+
+@RequiresOptIn(level = RequiresOptIn.Level.ERROR)
+@Retention(AnnotationRetention.BINARY)
+annotation class ExperimentalAPI
+
+@ExperimentalAPI
+fun function(): String = ""
+
+fun use(): String {
+    @OptIn(ExperimentalAPI::class)
+    for (i in 1..2) {
+        function()
+    }
+
+    @OptIn(ExperimentalAPI::class)
+    return function()
+}

compiler/testData/diagnostics/testsWithStdLib/experimental/useExperimentalOnStatement.txt

@@ -0,0 +1,11 @@
+package
+
+@ExperimentalAPI public fun function(): kotlin.String
+public fun use(): kotlin.String
+
+@kotlin.RequiresOptIn(level = Level.ERROR) @kotlin.annotation.Retention(value = AnnotationRetention.BINARY) public final annotation class ExperimentalAPI : kotlin.Annotation {
+    public constructor ExperimentalAPI()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}