Update testData to new format

compiler/testData/ir/irText/expressions/throw.txt

@@ -1,10 +1,10 @@
-FILE /throw.kt
-  FUN public fun test1(): kotlin.Unit
+FILE fqName:<root> fileName:/throw.kt
+  FUN name:test1 visibility:public modality:FINAL <> () returnType:Unit flags:
     BLOCK_BODY
       THROW type=kotlin.Nothing
         CALL 'constructor Throwable()' type=kotlin.Throwable origin=null
-  FUN public fun testImplicitCast(a: kotlin.Any): kotlin.Unit
-    VALUE_PARAMETER value-parameter a: kotlin.Any
+  FUN name:testImplicitCast visibility:public modality:FINAL <> (a:kotlin.Any) returnType:Unit flags:
+    VALUE_PARAMETER name:a index:0 type:kotlin.Any flags:
     BLOCK_BODY
       WHEN type=kotlin.Unit origin=null
         BRANCH