Move foreign annotation tests into diagnostics folder

compiler/testData/diagnostics/foreignAnnotationsTests/tests/jsr305/strange.kt

@@ -0,0 +1,34 @@
+// !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_PARAMETER
+// JSR305_GLOBAL_REPORT: strict
+
+// FILE: A.java
+import javax.annotation.*;
+import javax.annotation.meta.*;
+
+public class A {
+    @Nonnull(when=When.UNKNOWN) public String field = null;
+
+    @Nonnull(when=When.MAYBE)
+    public String foo(@Nonnull(when=When.ALWAYS) String x, @Nonnull(when=When.NEVER) CharSequence y) {
+        return "";
+    }
+
+    @Nonnull
+    public String bar() {
+        return "";
+    }
+
+}
+
+// FILE: main.kt
+fun main(a: A) {
+    a.foo("", null)?.length
+    a.foo("", null)<!UNSAFE_CALL!>.<!>length
+    a.foo(<!NULL_FOR_NONNULL_TYPE!>null<!>, "")<!UNSAFE_CALL!>.<!>length
+
+    a.bar().length
+    a.bar()<!UNNECESSARY_NOT_NULL_ASSERTION!>!!<!>.length
+
+    a.field?.length
+    a.field.length
+}