[FIR] FirRenderer: render name for scripts

A script name is important information, so it is better to render it.
This also will fix the inconsistency with redundant space after 'SCRIPT:'.

analysis/low-level-api-fir/testData/getOrBuildFir/expressions/incExpressionScript.txt

@@ -8,7 +8,7 @@ R|<local>/nextUnnamedLibraryIndex| = R|<local>/<unary>|.R|kotlin/Int.inc|()
 FIR FILE:
 FILE: [ResolvedTo(IMPORTS)] incExpressionScript.kts
     context(<script>@R|kotlin/script/templates/standard/ScriptTemplateWithArgs|)
-    SCRIPT: [ResolvedTo(TYPES)] 
+    SCRIPT: [ResolvedTo(TYPES)] <script-incExpressionScript.kts>
         [ResolvedTo(RAW_FIR)] lval args: R|kotlin/Array<kotlin/String>|
 
         public final [ResolvedTo(BODY_RESOLVE)] fun main([ResolvedTo(BODY_RESOLVE)] args: R|kotlin/Array<kotlin/String>|): R|kotlin/Unit| {
@@ -19,4 +19,4 @@ FILE: [ResolvedTo(IMPORTS)] incExpressionScript.kts
                 R|<local>/<unary>|
             }
             )
-        }
+        }