Minor GDScript style

Author: Bromeon

itest/godot/ManualFfiTests.gd

@@ -9,11 +9,11 @@ func test_missing_init():
 
 	var expr = Expression.new()
 	var error = expr.parse("WithoutInit.new()")
-	if !assert_eq(error, OK, "Failed to parse dynamic expression"):
+	if not assert_eq(error, OK, "Failed to parse dynamic expression"):
 		return
 
 	var instance = expr.execute()
-	if !assert_that(!expr.has_execute_failed(), "Failed to evaluate dynamic expression"):
+	if not assert_that(!expr.has_execute_failed(), "Failed to evaluate dynamic expression"):
 		return
 
 	print("[GD] WithoutInit is: ", instance)

itest/godot/TestRunner.gd

@@ -92,7 +92,7 @@ class GDScriptExecutableTestCase extends GDScriptTestCase:
 		# This is a no-op if the suite doesn't have this property.
 		suite.set("_assertion_failed", false)
 		var result = suite.call(method_name)
-		var ok: bool = (result == true || result == null) && !suite.get("_assertion_failed")
+		var ok: bool = (result == true or result == null) and not suite.get("_assertion_failed")
 		return ok
 
 # Hardcoded test case used for special cases where the standard testing API is not sufficient.