Move contents of builtins/* to stdlib/*. This simplifies finding stubs.

stdlib/2.7/time.pyi

@@ -0,0 +1,48 @@
+"""Stub file for the 'time' module."""
+# See https://docs.python.org/2/library/time.html
+
+from typing import NamedTuple, Tuple, Union
+
+# ----- variables and constants -----
+accept2dyear = False 
+altzone = 0
+daylight = 0
+timezone = 0
+tzname = ... # type: Tuple[str, str]
+
+struct_time = NamedTuple('struct_time',
+                         [('tm_year', int), ('tm_mon', int), ('tm_mday', int),
+                          ('tm_hour', int), ('tm_min', int), ('tm_sec', int),
+                          ('tm_wday', int), ('tm_yday', int), ('tm_isdst', int)])
+
+_TIME_TUPLE = Tuple[int, int, int, int, int, int, int, int, int]
+
+def asctime(t: struct_time = ...) -> str:
+    raise ValueError()
+
+def clock() -> float: ...
+
+def ctime(secs: float = ...) -> str:
+    raise ValueError()
+
+def gmtime(secs: float = ...) -> struct_time: ...
+
+def localtime(secs: float = ...) -> struct_time: ...
+
+def mktime(t: struct_time) -> float:
+    raise OverflowError()
+    raise ValueError()
+
+def sleep(secs: float) -> None: ...
+
+def strftime(format: str, t: struct_time = ...) -> str:
+    raise MemoryError()
+    raise ValueError()
+
+def strptime(string: str, format: str = ...) -> struct_time:
+    raise ValueError()
+
+def time() -> float:
+    raise IOError()
+
+def tzset() -> None: ...