Fix crash when calling String::split/split_floats

Was casting to the wrong object type.
Also adds parse_ints function to String with the same logic

include/core/String.hpp

@@ -8,6 +8,7 @@ namespace godot {
 class NodePath;
 class Variant;
 class PoolByteArray;
+class PoolIntArray;
 class PoolRealArray;
 class PoolStringArray;
 class String;
@@ -120,6 +121,7 @@ public:
 	String sha256_text() const;
 	float similarity(String text) const;
 	PoolStringArray split(String divisor, bool allow_empty = true) const;
+	PoolIntArray split_ints(String divisor, bool allow_empty = true) const;
 	PoolRealArray split_floats(String divisor, bool allow_empty = true) const;
 	String strip_edges(bool left = true, bool right = true) const;
 	String substr(int from, int len) const;

src/core/String.cpp

@@ -219,7 +219,7 @@ bool String::begins_with_char_array(const char *p_char_array) const {
 PoolStringArray String::bigrams() const {
 	godot_array arr = godot::api->godot_string_bigrams(&_godot_string);
 
-	return *(PoolStringArray *)&arr;
+	return *(Array *)&arr;
 }
 
 String String::c_escape() const {
@@ -479,13 +479,19 @@ float String::similarity(String text) const {
 PoolStringArray String::split(String divisor, bool allow_empty) const {
 	godot_array arr = godot::api->godot_string_split(&_godot_string, &divisor._godot_string);
 
-	return *(PoolStringArray *)&arr;
+	return *(Array *)&arr;
+}
+
+PoolIntArray String::split_ints(String divisor, bool allow_empty) const {
+	godot_array arr = godot::api->godot_string_split_floats(&_godot_string, &divisor._godot_string);
+
+	return *(Array *)&arr;
 }
 
 PoolRealArray String::split_floats(String divisor, bool allow_empty) const {
 	godot_array arr = godot::api->godot_string_split_floats(&_godot_string, &divisor._godot_string);
 
-	return *(PoolRealArray *)&arr;
+	return *(Array *)&arr;
 }
 
 String String::strip_edges(bool left, bool right) const {