Update irbuild-basic.test

Author: BobTheBuidler

mypyc/test-data/irbuild-basic.test

@@ -3799,3 +3799,11 @@ L0:
     r2.__mypyc_env__ = r0; r3 = is_error
     wrapper = r2
     return wrapper
+
+[case testStaticLength]
+def get_length() -> int:
+    return len("https://w3id.org/cwl/salad#")
+[out]
+def get_length():
+L0:
+    return 27