Enable libc++ in the build for libcxx initializerlist pretty printers

[dblaikie]

Looks like this test, when it was introduced/substantially refactored in D9426 - what was missing compared to all the other tests updated to run on linux, was the Makefile change to use libc++, so it was failing in places where libc++ wasn't the default. Fix that and it seems to pass for me, at least. Not sure if we need to keep some of the other expected failures (on some particular subset of clang, etc?)

Also there's a few other of these pretty printer tests that are still classified as skip-on-gcc, though at least some have been reclassified as passing-on-gcc in changes since D9426.

[teemperor]

LGTM, thanks!

Tests with libc++ as a category are not run on Windows or when GCC is the test compiler, so those decorators are redundant. Removing the Clang XFAIL also seems fine, I would just see if any matrix bot complains and then re-apply it with a proper minimum required version.

[dblaikie]

In D112163#3077112, @teemperor wrote:

LGTM, thanks!

Tests with libc++ as a category are not run on Windows or when GCC is the test compiler, so those decorators are redundant. Removing the Clang XFAIL also seems fine, I would just see if any matrix bot complains and then re-apply it with a proper minimum required version.

"matrix bot"? One of the buildbots/group of them?

[labath]

In D112163#3077124, @dblaikie wrote:

In D112163#3077112, @teemperor wrote:

LGTM, thanks!

Tests with libc++ as a category are not run on Windows or when GCC is the test compiler, so those decorators are redundant. Removing the Clang XFAIL also seems fine, I would just see if any matrix bot complains and then re-apply it with a proper minimum required version.

"matrix bot"? One of the buildbots/group of them?

It's a single bot that runs the test suite against a variety of compilers (well, only various versions of clang, I think)...

[teemperor]

There is one on Green Dragon with a few Clang versions and I there is my Linux one with most GCC/Clang versions

lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/initializerlist/Makefile

 CXX_SOURCES := main.cpp
 CXXFLAGS_EXTRAS := -std=c++11
 
+USE_LIBCPP := 1
+
 include Makefile.rules

lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/initializerlist/TestInitializerList.py

 """
 Test lldb data formatter subsystem.
 """
 
 
 
 import lldb
 from lldbsuite.test.decorators import *
 from lldbsuite.test.lldbtest import *
 from lldbsuite.test import lldbutil
 
 
 class InitializerListTestCase(TestBase):
 
     mydir = TestBase.compute_mydir(__file__)
 
-    @skipIfWindows  # libc++ not ported to Windows yet
-    @skipIf(compiler="gcc")
-    @expectedFailureAll(
-        oslist=["linux"],
-        bugnumber="fails on clang 3.5 and tot")
+    @add_test_categories(["libc++"])
     def test(self):
         """Test that that file and class static variables display correctly."""
         self.build()
         self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)
 
         bkpt = self.target().FindBreakpointByID(
             lldbutil.run_break_set_by_source_regexp(
                 self, "Set break point at this line."))