Update tests with new behaviour and make it pass

lib/cocoapods/generator/xcconfig/aggregate_xcconfig.rb

@@ -44,13 +44,12 @@ module Pod
       # @return [Xcodeproj::Config]
       #
       def generate
-      	header_search_paths = target.sandbox.public_headers.search_paths
-      	warning_suppressed_paths = target.pod_targets.each
+      	header_search_path_flags = target.sandbox.public_headers.search_paths.map {|path| '-isystem'+path}
         @xcconfig = Xcodeproj::Config.new({
           'OTHER_LDFLAGS' => XCConfigHelper.default_ld_flags(target),
-          'HEADER_SEARCH_PATHS' => XCConfigHelper.quote(target.sandbox.public_headers.search_paths),
           'PODS_ROOT' => target.relative_pods_root,
           'GCC_PREPROCESSOR_DEFINITIONS' => '$(inherited) COCOAPODS=1',
+          'OTHER_CFLAGS' => XCConfigHelper.quote(header_search_path_flags)
         })
 
         target.pod_targets.each do |pod_target|

spec/unit/generator/xcconfig/aggregate_xcconfig_spec.rb

@@ -55,15 +55,13 @@ module Pod
           @xcconfig.to_hash['PODS_ROOT'].should == '${SRCROOT}/Pods'
         end
 
-        it 'adds the sandbox public headers search paths to the xcconfig, with quotes' do
-          expected = "\"#{config.sandbox.public_headers.search_paths.join('" "')}\""
-          @xcconfig.to_hash['HEADER_SEARCH_PATHS'].should == expected
-        end
+#         it 'adds the sandbox public headers search paths to the xcconfig, with quotes' do
+#           expected = "\"#{config.sandbox.public_headers.search_paths.join('" "')}\""
+#           @xcconfig.to_hash['HEADER_SEARCH_PATHS'].should == expected
+#         end
         
-        it 'sets search path as system header given pod warning inhibition' do
+        it 'adds the sandbox public headers search paths to the xcconfig, with quotes, as system headers' do
           expected = "\"-isystem#{config.sandbox.public_headers.search_paths.join('" -isystem"')}\""
-          @target.target_definition.stubs(:inhibits_warnings_for_pod?).returns(true)
-          @xcconfig = @generator.generate
           @xcconfig.to_hash['OTHER_CFLAGS'].should == expected
         end