Modify script to accept "alias" test files for luajit

Useful when the language implements non-Lua syntax constructs. The "alias"
file can be provided as an equivalent test file that use Lua syntax.

scripts/test-bytecode-hex.py

@@ -29,8 +29,12 @@ def do_process_output(cmd):
 	sf.close()
 	return s
 
+def source_fullname_ref(fullname):
+    fullname_alias = re.sub(r'\.lua$', '.alias.lua', fullname)
+    return fullname_alias if os.path.isfile(fullname_alias) else fullname
+
 def expected_bytecode(name, fullname):
-	subprocess.check_call([luajit_exec, "-bg", fullname, ".out.raw"])
+	subprocess.check_call([luajit_exec, "-bg", source_fullname_ref(fullname), ".out.raw"])
 	s = do_process_output([luajit_x, "-bx", ".out.raw"])
 	yield s, "luajit"
 	expect_dir = os.path.join("tests", "expect_hex")

scripts/test-bytecode.py

@@ -70,8 +70,13 @@ def do_process_output(cmd):
 	sf.close()
 	return s
 
+def source_fullname_ref(fullname):
+    fullname_alias = re.sub(r'\.lua$', '.alias.lua', fullname)
+    return fullname_alias if os.path.isfile(fullname_alias) else fullname
+
 def expected_bytecode(name, fullname):
-	s = do_process_output([luajit_exec, "-bl", fullname])
+	s = do_process_output([luajit_exec, "-bl", source_fullname_ref(fullname)])
+	s = re.sub(r'\.alias\.lua([^a-z])', r'.lua\1', s)
 	yield s, "luajit"
 	expect_dir = os.path.join("tests", "expect")
 	for expect_filename in glob(os.path.join(expect_dir, "*.txt")):

scripts/test-luacode-output.py

@@ -21,6 +21,10 @@
 	print "Please make sure that luajit executable is in the current PATH."
 	sys.exit(1)
 
+def source_fullname_ref(fullname):
+    fullname_alias = re.sub(r'\.lua$', '.alias.lua', fullname)
+    return fullname_alias if os.path.isfile(fullname_alias) else fullname
+
 for dirpath, dirnames, filenames in os.walk(test_dir):
     for filename in sorted(filenames):
         m = re.match(r'([^.]+)\.lua$', filename)
@@ -33,7 +37,7 @@
                 out_tst = subprocess.check_output([luajit_exec, "run.lua", "-c", fullname])
             except subprocess.CalledProcessError:
                 run_error = True
-            out_ref = subprocess.check_output([luajit_exec, fullname])
+            out_ref = subprocess.check_output([luajit_exec, source_fullname_ref(fullname)])
             led, msg = None, None
             if run_error:
                 led, msg = "*", "fail to run"

scripts/test-output.py

@@ -22,6 +22,10 @@
 	print "Please make sure that luajit executable is in the current PATH."
 	sys.exit(1)
 
+def source_fullname_ref(fullname):
+    fullname_alias = re.sub(r'\.lua$', '.alias.lua', fullname)
+    return fullname_alias if os.path.isfile(fullname_alias) else fullname
+
 for dirpath, dirnames, filenames in os.walk(test_dir):
     for filename in sorted(filenames):
         m = re.match(r'([^.]+)\.lua$', filename)
@@ -34,7 +38,7 @@
                 out_tst = subprocess.check_output([luajit_x, fullname])
             except subprocess.CalledProcessError:
                 run_error = True
-            out_ref = subprocess.check_output([luajit_exec, fullname])
+            out_ref = subprocess.check_output([luajit_exec, source_fullname_ref(fullname)])
             led, msg = None, None
             if run_error:
                 led, msg = "*", "fail to run"