patch 8.0.1385: Python 3.5 is getting old

Problem:    Python 3.5 is getting old.
Solution:   Make Python 3.6 the default. (Ken Takata, closes #2429)

runtime/doc/if_pyth.txt

@@ -736,8 +736,8 @@ or 'pythonthreedll' option can be also used to specify the Python DLL.
 
 The name of the DLL should match the Python version Vim was compiled with.
 Currently the name for Python 2 is "python27.dll", that is for Python 2.7.
-That is the default value for 'pythondll'.  For Python 3 it is python35.dll
-(Python 3.5).  To know for sure edit "gvim.exe" and search for
+That is the default value for 'pythondll'.  For Python 3 it is python36.dll
+(Python 3.6).  To know for sure edit "gvim.exe" and search for
 "python\d*.dll\c".
 
 

src/INSTALLpc.txt

@@ -438,18 +438,31 @@ You will end up with a Python-enabled, Win32 version. Enjoy!
 ================================
 
 For building with MSVC 2008 the "Windows Installer" from www.python.org
-works fine.  Python 3.4 is recommended.
+works fine.  Python 3.6 is recommended.
 
 When building, you need to set the following variables at least:
 
-    PYTHON3:         Where Python3 is installed. E.g. C:\Python34
+    PYTHON3:         Where Python3 is installed. E.g. C:\Python36
     DYNAMIC_PYTHON3: Whether dynamic linking is used. Usually, set to yes.
-    PYTHON3_VER:     Python3 version. E.g. 34 for Python 3.4.X.
+    PYTHON3_VER:     Python3 version. E.g. 36 for Python 3.6.X.
 
 E.g. When using MSVC (as one line):
 
     nmake -f Make_mvc.mak
-        PYTHON3=C:\Python34 DYNAMIC_PYTHON3=yes PYTHON3_VER=34
+        PYTHON3=C:\Python36 DYNAMIC_PYTHON3=yes PYTHON3_VER=36
+
+
+When using msys2 and link with Python3 bundled with msys2 (as one line):
+
+    mingw32-make -f Make_ming.mak PYTHON3=c:/msys64/mingw64
+        PYTHON3_HOME=c:/msys64/mingw64
+        PYTHON3INC=-Ic:/msys64/mingw64/include/python3.6m
+        DYNAMIC_PYTHON3=yes
+        PYTHON3_VER=36
+        DYNAMIC_PYTHON3_DLL=libpython3.6m.dll
+        STATIC_STDCPLUS=yes
+
+(This is for 64-bit builds.  For 32-bit builds, replace mingw64 with mingw32.)
 
 
 8. Building with Racket or MzScheme support
@@ -684,21 +697,33 @@ config.h and Ruby's DLL name. Here are the steps for working around them:
     There is no need to build whole Ruby, just config.h is needed.
     If you use 32-bit MSVC 2015, the config.h is generated in the
     .ext\include\i386-mswin32_140 directory.
+    If you use 64-bit MSVC 2015, the config.h is generated in the
+    .ext\include\x64-mswin64_140 directory.
 
   3) Install the generated config.h.
 
+    For 32-bit version:
+
       xcopy /s .ext\include C:\Ruby24\include\ruby-2.4.0
 
+    For 64-bit version:
+
+      xcopy /s .ext\include C:\Ruby24-x64\include\ruby-2.4.0
+
     Note that 2.4.0 is Ruby API version of Ruby 2.4.X.
     You may need to close the console and reopen it to pick up the new $PATH.
 
   4) Build Vim. Note that you need to adjust some variables (as one line):
 
+    For 32-bit version:
+
       nmake -f Make_mvc.mak
           RUBY=C:\Ruby24 DYNAMIC_RUBY=yes RUBY_VER=24 RUBY_API_VER_LONG=2.4.0
           RUBY_MSVCRT_NAME=msvcrt
           WINVER=0x501
 
+    For 64-bit version, replace RUBY=C:\Ruby24 with RUBY=C:\Ruby24-x64.
+
     If you set WINVER explicitly, it must be set to >=0x500, when building
     with Ruby 2.1 or later.  (Default is 0x501.)
     When using this trick, you also need to set RUBY_MSVCRT_NAME to msvcrt
@@ -713,6 +738,7 @@ After you install RubyInstaller, just type this (as one line):
         RUBY=C:/Ruby24 DYNAMIC_RUBY=yes RUBY_VER=24 RUBY_API_VER_LONG=2.4.0
         WINVER=0x501
 
+For 64-bit version, replace RUBY=C:/Ruby24 with RUBY=C:/Ruby24-x64.
 If you set WINVER explicitly, it must be set to >=0x500, when building with
 Ruby 2.1 or later.  (Default is 0x501.)
 

src/Make_cyg_ming.mak

@@ -316,14 +316,14 @@ endif
 #	Python3 interface:
 #	  PYTHON3=[Path to Python3 directory] (Set inside Make_cyg.mak or Make_ming.mak)
 #	  DYNAMIC_PYTHON3=yes (to load the Python3 DLL dynamically)
-#	  PYTHON3_VER=[Python3 version, eg 31, 32] (default is 35)
+#	  PYTHON3_VER=[Python3 version, eg 31, 32] (default is 36)
 ifdef PYTHON3
 ifndef DYNAMIC_PYTHON3
 DYNAMIC_PYTHON3=yes
 endif
 
 ifndef PYTHON3_VER
-PYTHON3_VER=35
+PYTHON3_VER=36
 endif
 ifndef DYNAMIC_PYTHON3_DLL
 DYNAMIC_PYTHON3_DLL=python$(PYTHON3_VER).dll

src/Make_mvc.mak

@@ -67,7 +67,7 @@
 #	Python3 interface:
 #	  PYTHON3=[Path to Python3 directory]
 #	  DYNAMIC_PYTHON3=yes (to load the Python3 DLL dynamically)
-#	  PYTHON3_VER=[Python3 version, eg 30, 31]  (default is 35)
+#	  PYTHON3_VER=[Python3 version, eg 30, 31]  (default is 36)
 #
 #	Ruby interface:
 #	  RUBY=[Path to Ruby directory]
@@ -906,7 +906,7 @@ PYTHON_LIB = $(PYTHON)\libs\python$(PYTHON_VER).lib
 # PYTHON3 interface
 !ifdef PYTHON3
 !ifndef PYTHON3_VER
-PYTHON3_VER = 35
+PYTHON3_VER = 36
 !endif
 !message Python3 requested (version $(PYTHON3_VER)) - root dir is "$(PYTHON3)"
 !if "$(DYNAMIC_PYTHON3)" == "yes"

src/bigvim.bat

@@ -1,5 +1,5 @@
 :: command to build big Vim with OLE, Lua, Perl, Python, Racket, Ruby and Tcl
 SET VCDIR="C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin\"
 SET TOOLDIR=E:\
-%VCDIR%nmake -f Make_mvc.mak GUI=yes OLE=yes LUA=%TOOLDIR%lua53 DYNAMIC_LUA=yes LUA_VER=53 PERL=%TOOLDIR%perl524 DYNAMIC_PERL=yes PERL_VER=524 PYTHON=%TOOLDIR%python27 DYNAMIC_PYTHON=yes PYTHON_VER=27 PYTHON3=%TOOLDIR%python35 DYNAMIC_PYTHON3=yes PYTHON3_VER=35 MZSCHEME=%TOOLDIR%Racket DYNAMIC_MZSCHEME=yes MZSCHEME_VER=3m_a36fs8 RUBY=%TOOLDIR%ruby24 DYNAMIC_RUBY=yes RUBY_VER=24 RUBY_API_VER_LONG=2.4.0 RUBY_MSVCRT_NAME=msvcrt TCL=%TOOLDIR%ActiveTcl TCL_VER=86 TCL_VER_LONG=8.6 DYNAMIC_TCL=yes TCL_DLL=tcl86t.dll %1 IME=yes CSCOPE=yes DIRECTX=yes
+%VCDIR%nmake -f Make_mvc.mak GUI=yes OLE=yes LUA=%TOOLDIR%lua53 DYNAMIC_LUA=yes LUA_VER=53 PERL=%TOOLDIR%perl524 DYNAMIC_PERL=yes PERL_VER=524 PYTHON=%TOOLDIR%python27 DYNAMIC_PYTHON=yes PYTHON_VER=27 PYTHON3=%TOOLDIR%python36 DYNAMIC_PYTHON3=yes PYTHON3_VER=36 MZSCHEME=%TOOLDIR%Racket DYNAMIC_MZSCHEME=yes MZSCHEME_VER=3m_a36fs8 RUBY=%TOOLDIR%ruby24 DYNAMIC_RUBY=yes RUBY_VER=24 RUBY_API_VER_LONG=2.4.0 RUBY_MSVCRT_NAME=msvcrt TCL=%TOOLDIR%ActiveTcl TCL_VER=86 TCL_VER_LONG=8.6 DYNAMIC_TCL=yes TCL_DLL=tcl86t.dll %1 IME=yes CSCOPE=yes DIRECTX=yes
 

src/version.c

@@ -771,6 +771,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1385,
 /**/
     1384,
 /**/