Forward EMULATE_FUNCTION_POINTER_CASTS to fastcomp (#7318)

Author: kripken

emscripten.py

@@ -444,6 +444,8 @@ def create_backend_args(infile, temp_js):
     args += ['-emscripten-no-aliasing-function-pointers']
   if shared.Settings.EMULATED_FUNCTION_POINTERS:
     args += ['-emscripten-emulated-function-pointers']
+  if shared.Settings.EMULATE_FUNCTION_POINTER_CASTS:
+    args += ['-emscripten-emulate-function-pointer-casts']
   if shared.Settings.RELOCATABLE:
     args += ['-emscripten-relocatable']
     args += ['-emscripten-global-base=0']

tests/test_other.py

@@ -8245,7 +8245,7 @@ def test(filename, expectations):
                  0, [],                         ['tempDoublePtr', 'waka'],     8,   0,    0, 0), # noqa; totally empty!
       # but we don't metadce with linkable code! other modules may want it
       (['-O3', '-s', 'MAIN_MODULE=1'],
-              1529, ['invoke_i'],               ['waka'],                 469663, 149, 1443, None), # noqa; don't compare the # of functions in a main module, which changes a lot
+              1488, ['invoke_v'],               ['waka'],                 469663, 149, 1443, None), # noqa; don't compare the # of functions in a main module, which changes a lot
     ]) # noqa
 
     print('test on a minimal pure computational thing')