Do not use IntelliJ extensions for uninitialized variable suppressor in JS

compiler/testData/diagnostics/testsWithJsStdLib/native/optionlBody/native.kt

@@ -2,7 +2,9 @@
 // unreachable code suppressed due to KT-9586
 
 external val baz: Int
+val useBaz = baz
 external val boo: Int = definedExternally
+val useBoo = boo
 
 external fun foo()
 external fun bar() { definedExternally }
@@ -37,5 +39,3 @@ external object O {
     fun foo(s: String): String
     fun bar(s: String): String = definedExternally
 }
-
-

compiler/testData/diagnostics/testsWithJsStdLib/native/optionlBody/native.txt

@@ -2,6 +2,8 @@ package
 
 public external val baz: kotlin.Int
 public external val boo: kotlin.Int
+public val useBaz: kotlin.Int
+public val useBoo: kotlin.Int
 public external fun bar(): kotlin.Unit
 public external fun foo(): kotlin.Unit