GDScript: Deprecate type_exists() global function

modules/gdscript/doc_classes/@GDScript.xml

@@ -133,7 +133,7 @@
 				- A constant from the [enum Variant.Type] enumeration, for example [constant TYPE_INT].
 				- An [Object]-derived class which exists in [ClassDB], for example [Node].
 				- A [Script] (you can use any class, including inner one).
-				Unlike the right operand of the [code]is[/code] operator, [param type] can be a non-constant value. The [code]is[/code] operator supports more features (such as typed arrays). Use the operator instead of this method if you do not need to check the type dynamically.
+				Unlike the right operand of the [code]is[/code] operator, [param type] can be a non-constant value. The [code]is[/code] operator supports more features (such as typed arrays and dictionaries). Use the operator instead of this method if you do not need to check the type dynamically.
 				[b]Examples:[/b]
 				[codeblock]
 				print(is_instance_of(a, TYPE_INT))
@@ -142,7 +142,7 @@
 				print(is_instance_of(a, MyClass.InnerClass))
 				[/codeblock]
 				[b]Note:[/b] If [param value] and/or [param type] are freed objects (see [method @GlobalScope.is_instance_valid]), or [param type] is not one of the above options, this method will raise a runtime error.
-				See also [method @GlobalScope.typeof], [method type_exists], [method Array.is_same_typed] (and other [Array] methods).
+				See also [method @GlobalScope.typeof], [method Object.is_class], [method Object.get_script], [method Array.is_same_typed] (and other [Array] methods), [method Dictionary.is_same_typed] (and other [Dictionary] methods).
 			</description>
 		</method>
 		<method name="len">
@@ -266,7 +266,7 @@
 				[/codeblock]
 			</description>
 		</method>
-		<method name="type_exists">
+		<method name="type_exists" deprecated="Use [method ClassDB.class_exists] instead.">
 			<return type="bool" />
 			<param index="0" name="type" type="StringName" />
 			<description>