Add a test for dynCompileExpr

testsuite/tests/ghc-api/dynCompileExpr/Makefile

+TOP=../../..
+include $(TOP)/mk/boilerplate.mk
+include $(TOP)/mk/test.mk
+
+clean:
+	rm -f *.o *.hi
+
+dynCompileExpr: clean
+	'$(TEST_HC)' $(TEST_HC_OPTS) --make -v0 -package ghc dynCompileExpr
+	./dynCompileExpr "`'$(TEST_HC)' $(TEST_HC_OPTS) --print-libdir | tr -d '\r'`"
+
+.PHONY: clean dynCompileExpr
+

testsuite/tests/ghc-api/dynCompileExpr/all.T

+test('dynCompileExpr',
+     normal,
+     run_command,
+     ['$MAKE -s --no-print-directory dynCompileExpr'])

testsuite/tests/ghc-api/dynCompileExpr/dynCompileExpr.hs

+
+module Main where
+
+import GHC
+import MonadUtils
+
+import System.Environment
+
+main :: IO ()
+main = do [libdir] <- getArgs
+          runGhc (Just libdir) doit
+
+doit :: Ghc ()
+doit = do
+  getSessionDynFlags >>= setSessionDynFlags
+  dyn <- dynCompileExpr "()"
+  liftIO $ print dyn
+

testsuite/tests/ghc-api/dynCompileExpr/dynCompileExpr.stdout

+<<()>>