[Analysis API] do not preresolve all FirDeclarations to TYPES in tests

Previously, we resolved all declaration to the TYPES phase to collect their sealed inheritors
and thus not really checking lazy resolution to TYPES.
Now sealed class inheritors collection happens in separate LLFirResolveSession

compiler/testData/diagnostics/tests/multimodule/kt14249.kt

@@ -1,4 +1,3 @@
-// FIR_IDE_IGNORE
 // FIR_IDENTICAL
 // MODULE: m1
 // FILE: test/Foo.java