[FIR] Fix analysis of FirScript contents

Running the
`FirScriptCodegenTestGenerated.testSecondLevelFunction` test results
in "Expected is `FirResolvedDeclarationStatus`, but was
`FirDeclarationStatusImpl`. This is similar to the
`FirIdeNormalAnalysisSourceModuleCodeFragmentCollectDiagnosticsTestGenerated.testLocalFunction`
test, but that one was fixed by `9514f8f8`.
Looks like the situation here is the same,
it's just `FirScript` that needs to be
fixed.

The changed regarding the approximation is needed to avoid exposing
the anonymous type in
`FirScriptLazyDeclarationResolveTestGenerated.testDelegatesScript`.

The difference in the
`ScriptInBlockModificationTestGenerated.testRawContractScript`
test appeared because previously
the contract used to be
`FirRawContractDescription`, but
it now resolves to
`FirEmptyContractDescription`.

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/transformers/LLFirAbstractBodyTargetResolver.kt

@@ -50,7 +50,7 @@ internal abstract class LLFirAbstractBodyTargetResolver(
     }
 
     override fun withScript(firScript: FirScript, action: () -> Unit) {
-        transformer.context.withScopesForScript(firScript, transformer.components, action)
+        transformer.context.withScript(firScript, transformer.components, action)
     }
 
     override fun withFile(firFile: FirFile, action: () -> Unit) {

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/util/ContextCollector.kt

@@ -294,7 +294,7 @@ private class ContextCollectorVisitor(
     }
 
     override fun visitScript(script: FirScript) {
-        context.withScopesForScript(script, holder) {
+        context.withScript(script, holder) {
             withInterceptor {
                 super.visitScript(script)
             }

analysis/low-level-api-fir/testdata/inBlockModification/rawContractScript.txt

@@ -1,11 +1,5 @@
 BEFORE MODIFICATION:
-public final [ResolvedTo(BODY_RESOLVE)] fun foo([ResolvedTo(BODY_RESOLVE)] arg: R|kotlin/Any?|, [ResolvedTo(BODY_RESOLVE)] num: R|kotlin/Int?|, [ResolvedTo(BODY_RESOLVE)] block: R|() -> kotlin/Unit|): R|kotlin/Unit|
-    [Contract description] <
-        <Unresolved name: returns>#().<Unresolved name: implies>#((R|<local>/arg| is R|kotlin/String|)),
-        <Unresolved name: returns>#().<Unresolved name: implies>#(!=(R|<local>/num|, Null(null))),
-        <Unresolved name: callsInPlace>#(R|<local>/block|, <Unresolved name: InvocationKind>#.<Unresolved name: EXACTLY_ONCE>#)
-    >
- {
+public final [ResolvedTo(BODY_RESOLVE)] fun foo([ResolvedTo(BODY_RESOLVE)] arg: R|kotlin/Any?|, [ResolvedTo(BODY_RESOLVE)] num: R|kotlin/Int?|, [ResolvedTo(BODY_RESOLVE)] block: R|() -> kotlin/Unit|): R|kotlin/Unit| {
     <Unresolved name: require>#((R|<local>/arg| is R|kotlin/String|))
     <Unresolved name: require>#(!=(R|<local>/num|, Null(null)))
     R|<local>/block|.R|SubstitutionOverride<kotlin/Function0.invoke: R|kotlin/Unit|>|()

compiler/fir/providers/src/org/jetbrains/kotlin/fir/types/TypeUtils.kt

@@ -434,7 +434,7 @@ fun shouldApproximateAnonymousTypesOfNonLocalDeclaration(containingCallableVisib
 fun FirDeclaration.visibilityForApproximation(container: FirDeclaration?): Visibility {
     if (this !is FirMemberDeclaration) return Visibilities.Local
     val containerVisibility =
-        if (container == null || container is FirFile) Visibilities.Public
+        if (container == null || container is FirFile || container is FirScript) Visibilities.Public
         else (container as? FirRegularClass)?.visibility ?: Visibilities.Local
     if (containerVisibility == Visibilities.Local || visibility == Visibilities.Local) return Visibilities.Local
     if (containerVisibility == Visibilities.Private) return Visibilities.Private

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve/BodyResolveContext.kt

@@ -505,7 +505,8 @@ class BodyResolveContext(
         }
     }
 
-    fun <T> withScopesForScript(
+    @OptIn(PrivateForInline::class)
+    fun <T> withScript(
         owner: FirScript,
         holder: SessionHolder,
         f: () -> T
@@ -537,7 +538,9 @@ class BodyResolveContext(
         )
 
         return withTowerDataContexts(newContexts) {
-            f()
+            withContainer(owner) {
+                f()
+            }
         }
     }
 

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve/FirDeclarationsResolveTransformer.kt

@@ -618,7 +618,7 @@ open class FirDeclarationsResolveTransformer(
 
     fun withScript(script: FirScript, action: () -> FirScript): FirScript {
         dataFlowAnalyzer.enterScript(script)
-        val result = context.withScopesForScript(script, components) {
+        val result = context.withScript(script, components) {
             action()
         }
         dataFlowAnalyzer.exitScript() // TODO: FirScript should be a FirControlFlowGraphOwner, KT-59683