Make iossim binary work on Xcode 5 and 6.

testing/iossim/iossim.gyp

Index: testing/iossim/iossim.gyp
diff --git a/testing/iossim/iossim.gyp b/testing/iossim/iossim.gyp
index 2c1bd83e54aea74494b67e5f36160da58c69ed08..81334a110bc8600bc140e733c1216f08d02c94dc 100644
--- a/testing/iossim/iossim.gyp
+++ b/testing/iossim/iossim.gyp
@@ -25,6 +25,13 @@
               'defines': [
                 'IOSSIM_USE_XCODE_6',
               ],
+              'xcode_settings': {
+                # The CoreSimulator.h file generated by class-dump defines a
+                # property of type |NSString*| and a setter for the property
+                # that takes a parameter of type |id|. This type mismatch causes
+                # a compiler warning, so turn off -Werror.
+                'GCC_TREAT_WARNINGS_AS_ERRORS': 'NO',

[TVL, 2014/08/22 18:27:35]

if you want a smaller hammer, can you wrap the import with something like:

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wwhat_ever_it_is"
#import "header.h"
#pragma clang diagnostic pop

[lliabraa, 2014/08/25 13:14:04]

I can't find the -W flag for this warning; I think it may be new and
uncategorized? The compiler output is:

error: type of property 'name' does not match type of accessor 'setName:'

and there is no [-Wname_of_warning_flag] at the end to tell me how to turn it
off.

+              },
               'actions': [
                 {
                   'action_name': 'generate_dvt_foundation_header',