Mark a test as needing the interpreter

tests/ghc_ghci/test.T

@@ -2,7 +2,8 @@
 test('hpc_ghc_ghci',
      [only_ways(['normal']),
       only_compiler_types(['ghc']),
-      if_compiler_profiled(skip)],
+      if_compiler_profiled(skip),
+      req_interp],
      run_command,
      ['$MAKE -s --no-print-directory hpc_ghc_ghci'])