Fix for *.ts conflict between TypeScript and Qt Translation files

lib/linguist/heuristics.rb

@@ -19,6 +19,9 @@ module Linguist
         if languages.all? { |l| ["Perl", "Prolog"].include?(l) }
           disambiguate_pl(data, languages)
         end
+        if languages.all? { |l| ["TypeScript", "XML"].include?(l) }
+          disambiguate_ts(data, languages)
+        end
       end
     end
 
@@ -40,6 +43,16 @@ module Linguist
       matches
     end
 
+    def self.disambiguate_ts(data, languages)
+      matches = []
+      if (data.include?("</translation>"))
+        matches << Language["XML"]
+      else
+        matches << Language["TypeScript"]
+      end
+      matches
+    end
+
     def self.active?
       !!ACTIVE
     end

lib/linguist/languages.yml

@@ -1791,6 +1791,7 @@ XML:
   - .tmSnippet
   - .tmTheme
   - .tml
+  - .ts
   - .ui
   - .urdf
   - .vxml

samples/XML/pt_BR.ts

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.0" language="pt_BR">
+<context>
+    <name>MainWindow</name>
+    <message>
+        <location filename="../forms/mainwindow.ui" line="22"/>
+        <source>United Kingdom</source>
+        <translation>Reino Unido</translation>
+    </message>
+    <message>
+        <location filename="../forms/mainwindow.ui" line="38"/>
+        <source>God save the Queen</source>
+        <translation>Deus salve a Rainha</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="46"/>
+        <source>England</source>
+        <translation>Inglaterra</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="47"/>
+        <source>Wales</source>
+        <translation>Gales</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="48"/>
+        <source>Scotland</source>
+        <translation>Escócia</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="49"/>
+        <source>Northern Ireland</source>
+        <translation>Irlanda Norte</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="51"/>
+        <source>Portuguese</source>
+        <translation>Português</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="52"/>
+        <source>English</source>
+        <translation>Inglês</translation>
+    </message>
+</context>
+</TS>