Fixed skipIfLinuxClang to check the target architecture, not the host architecture

[flackr]

As a sidenote, I wonder how many of these skip if linux checks should also be skipping if freebsd.

[vharron]

r236402

test/lldbtest.py

def skipIfLinuxClang(func):
     """
     if isinstance(func, type) and issubclass(func, unittest2.TestCase):
         raise Exception("@skipIfLinuxClang can only be used to decorate a test method")
     @wraps(func)
     def wrapper(*args, **kwargs):
         from unittest2 import case
         self = args[0]
         compiler = self.getCompiler()
-        platform = sys.platform
-        if "clang" in compiler and "linux" in platform:
+        platform = self.getPlatform()
+        if "clang" in compiler and platform == "linux":
             self.skipTest("skipping because Clang is used on Linux")
         else:
             func(*args, **kwargs)
     return wrapper
 
 # provide a function to skip on defined oslist, compiler version, and archs
 # if none is specified for any argument, that argument won't be checked and thus means for all
 # for example,