[2.0] DDC-169 - Fixed DatabaseDriver

tests/Doctrine/Tests/ORM/Functional/DatabaseDriver/fkYaml.yml

-DbdriverBaz:
-  type: entity
-  table: dbdriver_baz
-  fields:
-    id:
-      id: true
-      type: integer
-      unsigned: false
-      notnull: true
-      default: null
-      generator:
-        strategy: AUTO
-  oneToOne:
-    bar:
-      targetEntity: DbdriverBar
-      cascade:
-        remove: false
-        persist: false
-        refresh: false
-        merge: false
-        detach: false
-      mappedBy: null
-      joinColumns:
-        bar_id:
-          referencedColumnName: id
-      orphanRemoval: false
\ No newline at end of file

tests/Doctrine/Tests/ORM/Functional/DatabaseDriver/simpleYaml.yml

-DbdriverFoo:
-  type: entity
-  table: dbdriver_foo
-  fields:
-    id:
-      id: true
-      type: integer
-      unsigned: false
-      notnull: true
-      default: null
-      generator:
-        strategy: AUTO
-    bar:
-      type: string(200)
-      fixed: false
-      notnull: true
-      default: null
\ No newline at end of file