Fix query analyzers base context / suppress keys

lib/gitlab/database/query_analyzers/base.rb

@@ -48,11 +48,15 @@ module Gitlab
         end
 
         def self.context_key
-          "#{self.class.name}_context"
+          @context_key ||= "analyzer_#{self.analyzer_key}_context".to_sym
         end
 
         def self.suppress_key
-          "#{self.class.name}_suppressed"
+          @suppress_key ||= "analyzer_#{self.analyzer_key}_suppressed".to_sym
+        end
+
+        def self.analyzer_key
+          @analyzer_key ||= self.name.demodulize.underscore.to_sym
         end
       end
     end

spec/lib/gitlab/database/query_analyzers/prevent_cross_database_modification_spec.rb

@@ -14,6 +14,22 @@ RSpec.describe Gitlab::Database::QueryAnalyzers::PreventCrossDatabaseModificatio
     Gitlab::Database::QueryAnalyzer.instance.within { example.run }
   end
 
+  describe 'context and suppress key names' do
+    describe '.context_key' do
+      it 'contains class name' do
+        expect(described_class.context_key)
+          .to eq 'analyzer_prevent_cross_database_modification_context'.to_sym
+      end
+    end
+
+    describe '.suppress_key' do
+      it 'contains class name' do
+        expect(described_class.suppress_key)
+          .to eq 'analyzer_prevent_cross_database_modification_suppressed'.to_sym
+      end
+    end
+  end
+
   shared_examples 'successful examples' do |model:|
     let(:model) { model }