minor: rename FirScript.statements do declarations...

to simplify the following commit that actually convert the types
and wrap statements into blocks.

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/components/KtFirReferenceShortener.kt

@@ -67,7 +67,6 @@ import org.jetbrains.kotlin.resolve.calls.tower.CandidateApplicability
 import org.jetbrains.kotlin.utils.addIfNotNull
 import org.jetbrains.kotlin.utils.addToStdlib.firstIsInstanceOrNull
 import org.jetbrains.kotlin.utils.exceptions.errorWithAttachment
-import java.util.Arrays
 
 internal class KtFirReferenceShortener(
     override val analysisSession: KtFirAnalysisSession,
@@ -433,7 +432,7 @@ private class CollectingVisitor(private val collector: ElementsToShortenCollecto
     }
 
     override fun visitScript(script: FirScript) {
-        script.statements.forEach {
+        script.declarations.forEach {
             it.accept(this)
         }
     }

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/symbols/pointers/KtFirResultPropertySymbolPointer.kt

@@ -25,7 +25,7 @@ internal class KtFirResultPropertySymbolPointer(private val scriptPointer: KtSym
             scriptPointer.restoreSymbol()?.firSymbol?.fir as? FirScript
         } ?: return null
 
-        val lastProperty = script.statements.lastOrNull() as? FirProperty ?: return null
+        val lastProperty = script.declarations.lastOrNull() as? FirProperty ?: return null
         if (lastProperty.origin !is FirDeclarationOrigin.ScriptCustomization.ResultProperty) return null
         return analysisSession.firSymbolBuilder.variableLikeBuilder.buildPropertySymbol(lastProperty.symbol) as? KtKotlinPropertySymbol
     }