Move implementation of Task methods into the cpp file

Reviewed-by: dt

src/plugins/projectexplorer/task.cpp

@@ -32,6 +32,22 @@
 namespace ProjectExplorer
 {
 
+Task::Task() : type(Unknown), line(-1)
+{ }
+
+Task::Task(TaskType type_, const QString &description_,
+           const QString &file_, int line_, const QString &category_) :
+    type(type_), description(description_), file(file_), line(line_), category(category_)
+{ }
+
+Task::Task(const Task &source) :
+    type(source.type), description(source.description), file(source.file),
+    line(source.line), category(source.category), formats(source.formats)
+{ }
+
+Task::~Task()
+{ }
+
 Task &Task::operator=(const Task &source)
 {
     type = source.type;