ProjectExplorer: Export findFileInSession()

Would be useful for https://github.com/JakeSays/QtCreatorTerminalPlugin/

Change-Id: I6629c95535b5ce7af8f9d486005f41598b8dff47
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/projectexplorer/fileinsessionfinder.cpp

@@ -79,11 +79,12 @@ FilePathList FileInSessionFinder::doFindFile(const FilePath &filePath)
     return m_finder.findFile(QUrl::fromLocalFile(filePath.toString()));
 }
 
+} // namespace Internal
+
 FilePathList findFileInSession(const FilePath &filePath)
 {
-    static FileInSessionFinder finder;
+    static Internal::FileInSessionFinder finder;
     return finder.doFindFile(filePath);
 }
 
-} // namespace Internal
 } // namespace ProjectExplorer

src/plugins/projectexplorer/fileinsessionfinder.h

@@ -25,12 +25,13 @@
 
 #pragma once
 
+#include "projectexplorer_export.h"
+
 #include <utils/fileutils.h>
 
 namespace ProjectExplorer {
-namespace Internal {
 
-Utils::FilePathList findFileInSession(const Utils::FilePath &filePath);
+// Possibly used by "QtCreatorTerminalPlugin"
+PROJECTEXPLORER_EXPORT Utils::FilePathList findFileInSession(const Utils::FilePath &filePath);
 
-} // namespace Internal
 } // namespace ProjectExplorer

src/plugins/projectexplorer/task.cpp

@@ -124,7 +124,7 @@ void Task::setFile(const Utils::FilePath &file_)
 {
     file = file_;
     if (!file.isEmpty() && !file.toFileInfo().isAbsolute()) {
-        Utils::FilePathList possiblePaths = Internal::findFileInSession(file);
+        Utils::FilePathList possiblePaths = findFileInSession(file);
         if (possiblePaths.length() == 1)
             file = possiblePaths.first();
         else