[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/forExpressionVariableScript.txt

@@ -8,7 +8,7 @@ FIR element rendered:
 FIR FILE:
 FILE: [ResolvedTo(IMPORTS)] forExpressionVariableScript.kts
     context(<script>@R|kotlin/script/templates/standard/ScriptTemplateWithArgs|)
-    SCRIPT: [ResolvedTo(TYPES)] 
+    SCRIPT: [ResolvedTo(TYPES)] <script-forExpressionVariableScript.kts>
         [ResolvedTo(RAW_FIR)] lval args: R|kotlin/Array<kotlin/String>|
 
         public final [ResolvedTo(BODY_RESOLVE)] fun foo(): R|kotlin/Unit| {
@@ -23,4 +23,4 @@ FILE: [ResolvedTo(IMPORTS)] forExpressionVariableScript.kts
 
             }
 
-        }
+        }