[Analysis API FIR] KtSymbolContainingDeclarationProvider: support script declarations

This commit also fixes a missing symbol for KtScriptInitializer
and some symbol pointers
Many tests marked as 'DO_NOT_CHECK_NON_PSI_SYMBOL_RESTORE'
due to KtFirFileSymbol#createPointer logic – the pointer can
be created only for PSI

^KT-61451
^KT-61887
^KT-62626 Fixed
^KT-62693

analysis/analysis-api/testData/components/containingDeclarationProvider/containingDeclarationByPsi/scriptWithResultProperty.kts

@@ -0,0 +1,16 @@
+fun foo() = 42
+val prop = 42
+
+class Bar {
+    fun member() {
+
+    }
+
+    val memberProperty: String
+        get() {
+            fun b() = "sre"
+            return b()
+        }
+}
+
+foo()