lldb: allow lldbbridge.py to be directly imported in python

Change-Id: Ib0bcb4dd708e89cebe12407a3f8e375c79664a74
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

share/qtcreator/debugger/lldbbridge.py

@@ -48,12 +48,13 @@ from misctypes import *
 from boosttypes import *
 from creatortypes import *
 
-
+lldbCmd = 'lldb'
-proc = subprocess.Popen(args=[sys.argv[1], '-P'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+if len(sys.argv) > 1:
+    lldbCmd = sys.argv[1]
+proc = subprocess.Popen(args=[lldbCmd, '-P'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 (path, error) = proc.communicate()
-
 if error.startswith('lldb: invalid option -- P'):
-    sys.stdout.write('msg=\'Could not run "%s -P". Trying to find lldb.so from Xcode.\'\n' % sys.argv[1])
+    sys.stdout.write('msg=\'Could not run "%s -P". Trying to find lldb.so from Xcode.\'\n' % lldbCmd)
     proc = subprocess.Popen(args=['xcode-select', '--print-path'],
         stdout=subprocess.PIPE, stderr=subprocess.PIPE)
     (path, error) = proc.communicate()
@@ -65,7 +66,6 @@ if error.startswith('lldb: invalid option -- P'):
         path = path.strip() + '/../SharedFrameworks/LLDB.framework/Versions/A/Resources/Python/'
         sys.stdout.write('msg=\'Using fallback at %s\'\n' % path)
 
-#sys.path.append(path)
 sys.path.insert(1, path.strip())
 
 import lldb
@@ -1729,7 +1729,7 @@ def testit():
     db.reportVariables()
     #db.report("DUMPER=%s" % qqDumpers)
 
-
+if __name__ == "__main__":
     if len(sys.argv) > 2:
         testit()
     else: