It was missing during configuration refinement thought new scripting API and during loading script configuration on Gradle project import
Do not pass additional classpath to configuration classpath: this may only affects Gradle with New scripting API (because it isn't used from other places)
In additional classpath kotlin-compiler and kotlin-stdlib was passed and there is no needs for this during loading Script Definitions through new scripting API
^KT-34626 Fixed
PsiElementFinder doesn't find classes from sdks that aren't Project SDK, so when Script Sdk differs from it we need to additionally search classes in script sdk using KotlinScriptDependenciesClassFinder (as we do for classes from ScriptDependencies.classpath)
^KT-31152 Fixed
Natalia Selezneva