Add tests and update refs.

tests/parser/function_def3.py

@@ -0,0 +1,13 @@
+def main0(i, ):
+    pass
+
+
+def example(
+    text,
+    width=80,
+    fill_char='-',
+):                  # type: (...) -> str
+    return
+
+
+example(text, width=80, fill_char='-',)

tests/reference/ast_new-function_def3-f66064a.json

@@ -0,0 +1,13 @@
+{
+    "basename": "ast_new-function_def3-f66064a",
+    "cmd": "lpython --show-ast --new-parser --no-color {infile} -o {outfile}",
+    "infile": "tests/parser/function_def3.py",
+    "infile_hash": "97ce9a159096686efc19c3bb609a17b94106a317f2166a40d538fe38",
+    "outfile": null,
+    "outfile_hash": null,
+    "stdout": "ast_new-function_def3-f66064a.stdout",
+    "stdout_hash": "0cbb3db8cff2f87c1035d2fcd49ea8c5a2c3a719eb646f5fc8cb648c",
+    "stderr": null,
+    "stderr_hash": null,
+    "returncode": 0
+}

tests/reference/ast_new-function_def3-f66064a.stdout

@@ -0,0 +1 @@
+(Module [(FunctionDef main0 ([] [(i () ())] [] [] [] [] []) [(Pass)] [] () ()) (FunctionDef example ([] [(text () ()) (width () ()) (fill_char () ())] [] [] [] [] [(ConstantInt 80 ()) (ConstantStr "-" ())]) [(Return ())] [] () "(...) -> str") (Expr (Call (Name example Load) [(Name text Load)] [(width (ConstantInt 80 ())) (fill_char (ConstantStr "-" ()))]))] [])

tests/tests.toml

@@ -427,6 +427,10 @@ ast_new = true
 filename = "parser/function_def2.py"
 ast_new = true
 
+[[test]]
+filename = "parser/function_def3.py"
+ast_new = true
+
 [[test]]
 filename = "parser/class_def1.py"
 ast_new = true