patch 9.0.0244: cannot easily get the list of sourced scripts

Problem:    Cannot easily get the list of sourced scripts.
Solution:   Add the getscriptinfo() function. (Yegappan Lakshmanan,
            closes #10957)

runtime/doc/builtin.txt

@@ -253,6 +253,7 @@ getreg([{regname} [, 1 [, {list}]]])
 				String or List   contents of a register
 getreginfo([{regname}])		Dict	information about a register
 getregtype([{regname}])		String	type of a register
+getscriptinfo()		List	list of sourced scripts
 gettabinfo([{expr}])		List	list of tab pages
 gettabvar({nr}, {varname} [, {def}])
 				any	variable {varname} in tab {nr} or {def}
@@ -4088,6 +4089,18 @@ getregtype([{regname}])					*getregtype()*
 		Can also be used as a |method|: >
 			GetRegname()->getregtype()
 
+getscriptinfo()					*getscriptinfo()*
+		Returns a |List| with information about all the sourced Vim
+		scripts in the order they were sourced. (|:scriptinfo|)
+
+		Each item in the returned List is a |Dict| with the following
+		items:
+		    autoload	set to TRUE for a script that was used with
+				|import autoload| but was not actually sourced
+				yet.
+		    name	vim script file name.
+		    sid		script ID |<SID>|.
+
 gettabinfo([{tabnr}])					*gettabinfo()*
 		If {tabnr} is not specified, then information about all the
 		tab pages is returned as a |List|. Each List item is a

runtime/doc/usr_41.txt

@@ -1310,6 +1310,14 @@ Prompt Buffer:					*promptbuffer-functions*
 	prompt_setinterrupt()	set interrupt callback for a buffer
 	prompt_setprompt()	set the prompt text for a buffer
 
+Registers:					*register-functions*
+	getreg()		get contents of a register
+	getreginfo()		get information about a register
+	getregtype()		get type of a register
+	setreg()		set contents and type of a register
+	reg_executing()		return the name of the register being executed
+	reg_recording()		return the name of the register being recorded
+
 Text Properties:				*text-property-functions*
 	prop_add()		attach a property at a position
 	prop_add_list()		attach a property at multiple positions
@@ -1341,6 +1349,7 @@ Various:					*various-functions*
 	did_filetype()		check if a FileType autocommand was used
 	eventhandler()		check if invoked by an event handler
 	getpid()		get process ID of Vim
+	getscriptinfo()	get list of sourced vim scripts
 	getimstatus()		check if IME status is active
 	interrupt()		interrupt script execution
 	windowsversion()	get MS-Windows version
@@ -1352,13 +1361,6 @@ Various:					*various-functions*
 	undofile()		get the name of the undo file
 	undotree()		return the state of the undo tree
 
-	getreg()		get contents of a register
-	getreginfo()		get information about a register
-	getregtype()		get type of a register
-	setreg()		set contents and type of a register
-	reg_executing()		return the name of the register being executed
-	reg_recording()		return the name of the register being recorded
-
 	shiftwidth()		effective value of 'shiftwidth'
 
 	wordcount()		get byte/word/char count of buffer