Do not require experimental propagation for body usages in same module

Unless it's a usage inside the body of an effectively public inline
function

 #KT-22759 In Progress

compiler/testData/diagnostics/testsWithStdLib/experimental/useExperimentalOnFile.kt

@@ -1,4 +1,5 @@
 // !API_VERSION: 1.3
+// MODULE: api
 // FILE: api.kt
 
 package api
@@ -17,6 +18,7 @@ fun compilation() {}
 @RuntimeExperimentalAPI
 fun runtime() {}
 
+// MODULE: usage(api)
 // FILE: usage.kt
 
 @file:UseExperimental(CompilationExperimentalAPI::class)