SNOW-1865910: fixing minor typos (#2792)

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   Fixes SNOW-1865910

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Author: sfc-gh-batur

src/snowflake/snowpark/functions.py

@@ -3430,7 +3430,7 @@ def charindex(
     s = _to_col_if_str(source_expr, "charindex")
     # Build AST here to prevent `position` from being recorded as a literal instead of int/None.
     ast = (
-        build_function_expr("char_index", [t, s, position], ignore_null_args=True)
+        build_function_expr("charindex", [t, s, position], ignore_null_args=True)
         if _emit_ast
         else None
     )

src/snowflake/snowpark/mock/_udtf.py

@@ -78,7 +78,7 @@ def _do_register_udtf(
                 ast = with_src_position(stmt.expr.udtf, stmt)
                 ast_id = stmt.var_id.bitfield1
 
-            object_name = kwargs["_registrated_object_name"]
+            object_name = kwargs["_registered_object_name"]
             udtf = MockUserDefinedTableFunction(
                 handler,
                 output_schema,

tests/ast/data/functions1.test

@@ -550,7 +550,7 @@ df123 = df111.select(regexp_replace(col("A"), "B", "", 1, 0), regexp_replace(col
 
 df124 = df111.select(replace(col("A"), "", ""), replace(col("A"), "B", "ahsgj"))
 
-df125 = df111.select(char_index(col("A"), col("B"), 20), char_index(col("A"), col("B"), col("C")))
+df125 = df111.select(charindex(col("A"), col("B"), 20), charindex(col("A"), col("B"), col("C")))
 
 df126 = df111.select(collate(col("A"), "sp-upper"))
 
@@ -15229,7 +15229,7 @@ body {
                 name {
                   name {
                     sp_name_flat {
-                      name: "char_index"
+                      name: "charindex"
                     }
                   }
                 }
@@ -15313,7 +15313,7 @@ body {
                 name {
                   name {
                     sp_name_flat {
-                      name: "char_index"
+                      name: "charindex"
                     }
                   }
                 }