Add rnfail047, test for trac #924

testsuite/tests/ghc-regress/rename/should_fail/RnFail047_A.hs

+
+module RnFail047_A (x) where
+
+import RnFail047
+
+x :: Int
+x = 3
+

testsuite/tests/ghc-regress/rename/should_fail/RnFail047_A.hs-boot

+
+module RnFail047_A (x, y) where
+
+x::Int
+y::Int
+

testsuite/tests/ghc-regress/rename/should_fail/all.T

@@ -48,3 +48,4 @@ test('rnfail043', skip_if_no_ghci, compile_fail, [''])
 test('rnfail044', normal, compile_fail, [''])
 test('rnfail045', normal, compile_fail, [''])
 test('rnfail046', normal, compile_fail, [''])
+test('rnfail047', normal, multimod_compile_fail, ['rnfail047', '-v0'])

testsuite/tests/ghc-regress/rename/should_fail/rnfail047.hs

+
+-- trac #924: RnFail047_A.hs-boot exports more than RnFail047_A.hs
+
+module RnFail047 where
+
+import {-# SOURCE #-} RnFail047_A
+
+v = x
+

testsuite/tests/ghc-regress/rename/should_fail/rnfail047.stderr

+
+RnFail047_A.hs:1:0:
+    RnFail047_A.y is exported by the hs-boot file, but not exported by the module