feat: allow separating sample code and doc-comments

crates/erg_compiler/lib/pystd/builtins.d.er

@@ -1,18 +1,12 @@
 '''
 Return the absolute value of the argument.
-
-```erg
-assert abs(-1) == 1
-assert abs(3+4Im) == 5
-```
 '''
 '''japanese
 引数の絶対値を返す。
-
-```erg
+'''
+'''erg
 assert abs(-1) == 1
 assert abs(3+4Im) == 5
-```
 '''
 .abs: (x: Num) -> Nat
 
@@ -20,11 +14,10 @@ assert abs(3+4Im) == 5
 Return `True` if `x == True` for all values `x` in the `iterable`.
 
 If the `iterable` is empty, return `True`.
-
-```erg
+'''
+'''erg
 assert all [1, 2].map(x -> x > 0)
 assert all []
-```
 '''
 .all: (iterable: Iterable Bool) -> Bool
 
@@ -32,11 +25,10 @@ assert all []
 Return `True` if `x == True` for any value `x` in the `iterable`.
 
 If the `iterable` is empty, return `False`.
-
-```erg
+'''
+'''erg
 assert any [-1, 1, 2].map(x -> x < 0)
 assert not any []
-```
 '''
 .any: (iterable: Iterable Bool) -> Bool
 
@@ -47,22 +39,16 @@ As repr(), return a string containing a printable representation of an
 object, but escape the non-ASCII characters in the string returned by
 repr() using \\x, \\u or \\U escapes. This generates a string similar
 to that returned by repr() in Python 2.
-
-```erg
-assert ascii("a") == "'a'"
-assert ascii("あ") == "'\\u3042'"
-```
 '''
 '''japanese
 オブジェクトのASCII表現を返す。
 
 repr()と同じように、オブジェクトの表現を文字列で返すが、repr()で返される文字列の非ASCII文字は\\x、\\u、\\Uエスケープでエスケープされる。
 これはPython 2でのrepr()と似た文字列を生成する。
-
-```erg
+'''
+'''erg
 assert ascii("a") == "'a'"
 assert ascii("あ") == "'\\u3042'"
-```
 '''
 .ascii: (obj: Obj) -> Str