Move core engine tests to main

(cherry picked from commits 790f629e5e1cccf721948b1153bb0dee139ac1a5
and 8b7a86ec7b7bc4bb115f45545aa062cba47022bc)

SConstruct

@@ -1,3 +1,4 @@
+
 #!/usr/bin/env python
 
 EnsureSConsVersion(0, 14)
@@ -360,7 +361,6 @@ if selected_platform in platform_list:
     SConscript("scene/SCsub")
     SConscript("tools/SCsub")
     SConscript("drivers/SCsub")
-    SConscript("bin/SCsub")
 
     SConscript("modules/SCsub")
     SConscript("main/SCsub")

bin/SCsub

@@ -1,6 +0,0 @@
-#!/usr/bin/python
-
-Import('env')
-Export('env')
-
-SConscript('tests/SCsub')

main/SCsub

@@ -7,6 +7,8 @@ env.add_source_files(env.main_sources, "*.cpp")
 
 Export('env')
 
+SConscript('tests/SCsub')
+
 lib = env.Library("main", env.main_sources)
 
 env.Prepend(LIBS=[lib])

main/main.cpp

@@ -47,7 +47,7 @@
 #include "script_language.h"
 #include "io/resource_loader.h"
 
-#include "bin/tests/test_main.h"
+#include "main/tests/test_main.h"
 #include "os/dir_access.h"
 #include "core/io/ip.h"
 #include "scene/resources/packed_scene.h"