Rename method that returns global envs in CI conf

app/models/ci/build.rb

@@ -372,7 +372,7 @@ module Ci
 
     def global_yaml_variables
       if commit.config_processor
-        commit.config_processor.variables.map do |key, value|
+        commit.config_processor.global_variables.map do |key, value|
           { key: key, value: value, public: true }
         end
       else

lib/ci/gitlab_ci_yaml_processor.rb

@@ -40,7 +40,7 @@ module Ci
       @stages || DEFAULT_STAGES
     end
 
-    def variables
+    def global_variables
       @variables
     end
 

spec/lib/ci/gitlab_ci_yaml_processor_spec.rb

@@ -359,7 +359,7 @@ module Ci
                              })
 
           config_processor = GitlabCiYamlProcessor.new(config, path)
-          expect(config_processor.variables).to eq(variables)
+          expect(config_processor.global_variables).to eq(variables)
         end
       end