[Tests][JS] Ignore two tests with ES_MODULE in JS Klib forward compatibility testing.

[Vladimir Sukharev (vsukharev)]

In scope of KT-75176 Add infrastructure for bundle size testing, the following tests were enabled for JS_IR using ES_MODULES:

• compiler/testData/codegen/box/size/helloWorldPromise.kt
• compiler/testData/codegen/box/size/add.kt

In presence of ES_MODULES test directive, JS testing fails in multi-module mode, which is highlighted by test directive and comment:

// IGNORE_BACKEND_K2_MULTI_MODULE: JS_IR, JS_IR_ES6
// ^^^^^^
// The Mutli Module tests are compiling the main module as a dependency module.
// Since we use ES modules in those tests, there is no re-exports from the dependencies,
// so it's failing with a runtime error, that there is no expected exported function

Similarly, in Klib forward compatibility tests there is no re-exports from the dependencies, so it's failing with a runtime error, that there is no expected exported function.
These two failures are revealed in recent CI run https://buildserver.labs.intellij.net/buildConfiguration/Kotlin_KotlinDev_KlibBackwardAndForwardCompatibilityTestsNightly/994159326

In this PR, these two tests are ignored for JS Klib forward compatibility tests

[kotlin-safemerge]

Code Owners

Rule	Owners	Approval
/​compiler/​testData/​codegen/​box/​size/​	bashor kotlin-js JSMonk broadwaylamb seclerp	❌ JSMonk

[kodee-bot]

Hi! It looks like there are no references to any YT issues in the commit messages.
If the change is non-functional, feel free to ignore the comment :)
Otherwise, please add them as requested in the guideline.

[Vladimir Sukharev (vsukharev)]

Nightly CI configuration is triggered to check this PR. These two tests are fixed there: https://buildserver.labs.intellij.net/buildConfiguration/Kotlin_KotlinDev_KlibBackwardAndForwardCompatibilityTestsNightly/994266365