Fix broken spack info command after build dep merge.

- Added a method to get dependencies of particular types from Package
- Fixed info command.

lib/spack/spack/cmd/info.py

@@ -84,7 +84,7 @@ def print_text_info(pkg):
     for deptype in ('build', 'link', 'run'):
         print
         print "%s Dependencies:" % deptype.capitalize()
-        deps = pkg.dependencies(deptype)
+        deps = pkg.dependencies_of_type(deptype)
         if deps:
             colify(deps, indent=4)
         else:

lib/spack/spack/package.py

@@ -565,6 +565,13 @@ def fetcher(self):
     def fetcher(self, f):
         self._fetcher = f
 
+
+    def dependencies_of_type(self, *deptypes):
+        """Get subset of the dependencies with certain types."""
+        return dict((name, conds) for name, conds in self.dependencies.items()
+                    if any(d in self._deptypes[name] for d in deptypes))
+
+
     @property
     def extendee_spec(self):
         """