[SPARK-28671][SQL] Throw NoSuchPermanentFunctionException for a non-exsistent permanent function in dropFunction/alterFunction

## What changes were proposed in this pull request?
**Before Fix**
When a non existent permanent function is dropped, generic NoSuchFunctionException was thrown.- which printed "This function is neither a registered temporary function nor a permanent function registered in the database" .
This creates a ambiguity when a temp function in the same name exist.

**After Fix**
 NoSuchPermanentFunctionException will be thrown, which will print
"NoSuchPermanentFunctionException:Function not found in database "

## How was this patch tested?
Unit test was run and corrected the UT.

Closes #25394 from PavithraRamachandran/funcIssue.

Lead-authored-by: pavithra <[email protected]>
Co-authored-by: pavithraramachandran <[email protected]>
Signed-off-by: Takeshi Yamamuro <[email protected]>

Author: PavithraRamachandran

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalog.scala

@@ -1114,7 +1114,7 @@ class SessionCatalog(
       }
       externalCatalog.dropFunction(db, name.funcName)
     } else if (!ignoreIfNotExists) {
-      throw new NoSuchFunctionException(db = db, func = identifier.toString)
+      throw new NoSuchPermanentFunctionException(db = db, func = identifier.toString)
     }
   }
 
@@ -1137,7 +1137,7 @@ class SessionCatalog(
       }
       externalCatalog.alterFunction(db, newFuncDefinition)
     } else {
-      throw new NoSuchFunctionException(db = db, func = identifier.toString)
+      throw new NoSuchPermanentFunctionException(db = db, func = identifier.toString)
     }
   }
 

sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalogSuite.scala

@@ -1429,7 +1429,7 @@ abstract class SessionCatalogSuite extends AnalysisTest {
         catalog.dropFunction(
           FunctionIdentifier("something", Some("unknown_db")), ignoreIfNotExists = false)
       }
-      intercept[NoSuchFunctionException] {
+      intercept[NoSuchPermanentFunctionException] {
         catalog.dropFunction(FunctionIdentifier("does_not_exist"), ignoreIfNotExists = false)
       }
       catalog.dropFunction(FunctionIdentifier("does_not_exist"), ignoreIfNotExists = true)