Rollup merge of rust-lang#83650 - tspiteri:source-serif-4, r=GuillaumeGomez

Update Source Serif to release 4.004

Now the family name is Source Serif 4 (upstream issue 77) instead of Source Serif Pro.

Author: Dylan-DPC

src/librustdoc/html/render/write_shared.rs

@@ -26,10 +26,10 @@ crate static FILES_UNVERSIONED: Lazy<FxHashMap<&str, &[u8]>> = Lazy::new(|| {
         "FiraSans-Regular.woff" => static_files::fira_sans::REGULAR,
         "FiraSans-Medium.woff" => static_files::fira_sans::MEDIUM,
         "FiraSans-LICENSE.txt" => static_files::fira_sans::LICENSE,
-        "SourceSerifPro-Regular.ttf.woff" => static_files::source_serif_pro::REGULAR,
-        "SourceSerifPro-Bold.ttf.woff" => static_files::source_serif_pro::BOLD,
-        "SourceSerifPro-It.ttf.woff" => static_files::source_serif_pro::ITALIC,
-        "SourceSerifPro-LICENSE.md" => static_files::source_serif_pro::LICENSE,
+        "SourceSerif4-Regular.ttf.woff" => static_files::source_serif_4::REGULAR,
+        "SourceSerif4-Bold.ttf.woff" => static_files::source_serif_4::BOLD,
+        "SourceSerif4-It.ttf.woff" => static_files::source_serif_4::ITALIC,
+        "SourceSerif4-LICENSE.md" => static_files::source_serif_4::LICENSE,
         "SourceCodePro-Regular.ttf.woff" => static_files::source_code_pro::REGULAR,
         "SourceCodePro-Semibold.ttf.woff" => static_files::source_code_pro::SEMIBOLD,
         "SourceCodePro-It.ttf.woff" => static_files::source_code_pro::ITALIC,

src/librustdoc/html/static/COPYRIGHT.txt

@@ -33,14 +33,14 @@ included, and carry their own copyright notices and license terms:
     Licensed under the SIL Open Font License, Version 1.1.
     See SourceCodePro-LICENSE.txt.
 
-* Source Serif Pro (SourceSerifPro-Regular.ttf.woff,
-    SourceSerifPro-Bold.ttf.woff, SourceSerifPro-It.ttf.woff):
+* Source Serif 4 (SourceSerif4-Regular.ttf.woff, SourceSerif4-Bold.ttf.woff,
+    SourceSerif4-It.ttf.woff):
 
-    Copyright 2014 Adobe Systems Incorporated (http://www.adobe.com/), with
-    Reserved Font Name 'Source'. All Rights Reserved. Source is a trademark of
-    Adobe Systems Incorporated in the United States and/or other countries.
+    Copyright 2014-2021 Adobe (http://www.adobe.com/), with Reserved Font Name
+    'Source'. All Rights Reserved. Source is a trademark of Adobe in the United
+    States and/or other countries.
 
     Licensed under the SIL Open Font License, Version 1.1.
-    See SourceSerifPro-LICENSE.txt.
+    See SourceSerif4-LICENSE.md.
 
 This copyright file is intended to be distributed with rustdoc output.

src/librustdoc/html/static/SourceSerif4-Bold.ttf.woff

@@ -1,4 +1,4 @@
-Copyright 2014-2018 Adobe (http://www.adobe.com/), with Reserved Font Name 'Source'. All Rights Reserved. Source is a trademark of Adobe in the United States and/or other countries.
+Copyright 2014-2021 Adobe (http://www.adobe.com/), with Reserved Font Name 'Source'. All Rights Reserved. Source is a trademark of Adobe in the United States and/or other countries.
 
 This Font Software is licensed under the SIL Open Font License, Version 1.1.
 

src/librustdoc/html/static/SourceSerif4-It.ttf.woff

@@ -18,26 +18,26 @@
 	font-display: swap;
 }
 
-/* See SourceSerifPro-LICENSE.txt for the Source Serif Pro license. */
+/* See SourceSerif4-LICENSE.md for the Source Serif 4 license. */
 @font-face {
-	font-family: 'Source Serif Pro';
+	font-family: 'Source Serif 4';
 	font-style: normal;
 	font-weight: 400;
-	src: local('Source Serif Pro'), url("SourceSerifPro-Regular.ttf.woff") format('woff');
+	src: local('Source Serif 4'), url("SourceSerif4-Regular.ttf.woff") format('woff');
 	font-display: swap;
 }
 @font-face {
-	font-family: 'Source Serif Pro';
+	font-family: 'Source Serif 4';
 	font-style: italic;
 	font-weight: 400;
-	src: local('Source Serif Pro Italic'), url("SourceSerifPro-It.ttf.woff") format('woff');
+	src: local('Source Serif 4 Italic'), url("SourceSerif4-It.ttf.woff") format('woff');
 	font-display: swap;
 }
 @font-face {
-	font-family: 'Source Serif Pro';
+	font-family: 'Source Serif 4';
 	font-style: normal;
 	font-weight: 700;
-	src: local('Source Serif Pro Bold'), url("SourceSerifPro-Bold.ttf.woff") format('woff');
+	src: local('Source Serif 4 Bold'), url("SourceSerif4-Bold.ttf.woff") format('woff');
 	font-display: swap;
 }
 
@@ -90,7 +90,7 @@ html {
 /* General structure and fonts */
 
 body {
-	font: 16px/1.4 "Source Serif Pro", serif;
+	font: 16px/1.4 "Source Serif 4", serif;
 	margin: 0;
 	position: relative;
 	padding: 10px 15px 20px 15px;