moved extension tests into test_evaluate folder

test/test_evaluate/extensions/README.rst

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+This directory contains pre-compiled extensions modules used to test completions
+for compiled modules on Travis-CI (Ubuntu 12.04 64bit).
+
+To build the extensions modules, run::
+
+    python setup.py build_ext -i
+
+
+Then move the compiled modules to their testing package ( ./**compiledXX**, where XX is the
+python version used to run setup.py).

test/test_evaluate/extensions/compiled.pyx

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+cdef class Foo:
+    pass
+
+
+cdef class Bar:
+    pass

test/test_evaluate/extensions/setup.py

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+from distutils.core import setup
+from Cython.Build import cythonize
+
+setup(
+    ext_modules=cythonize("compiled.pyx")
+)

test/test_evaluate/test_extension.py

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+"""
+Test compiled module
+"""
+import os
+import platform
+import sys
+import jedi
+
+from ..helpers import cwd_at
+
+
+@cwd_at('test/test_evaluate/extensions')
+def test_completions():
+    if platform.architecture()[0] == '64bit':
+        package_name = "compiled%s%s" % sys.version_info[:2]
+        sys.path.insert(0, os.getcwd())
+        if os.path.exists(package_name):
+            s = jedi.Script("from %s import compiled; compiled." % package_name)
+            assert len(s.completions()) >= 2
+
+
+@cwd_at('test/test_evaluate/extensions')
+def test_call_signatures_extension():
+    # with a cython extension
+    if platform.architecture()[0] == '64bit':
+        package_name = "compiled%s%s" % sys.version_info[:2]
+        sys.path.insert(0, os.getcwd())
+        if os.path.exists(package_name):
+            s = jedi.Script("from %s import compiled; compiled.Foo(" %
+                            package_name)
+            defs = s.call_signatures()
+            for call_def in defs:
+                for param in call_def.params:
+                    pass
+
+
+def test_call_signatures_stdlib():
+    code = "import math; math.cos("
+    s = jedi.Script(code)
+    defs = s.call_signatures()
+    for call_def in defs:
+        assert len(call_def.params) == 1