Fix some typos.

emcc

@@ -475,7 +475,7 @@ try:
       opt_level = validate_arg_level(requested_level, 3, 'Invalid optimization level: ' + newargs[i])
       # We leave the -O option in place so that the clang front-end runs in that
       # optimization mode, but we disable the actual optimization passes, as we'll
-      # run them seperately.
+      # run them separately.
       newargs.append('-mllvm')
       newargs.append('-disable-llvm-optzns')
     elif newargs[i].startswith('--js-opts'):
@@ -1427,7 +1427,7 @@ try:
           for i in range(len(chunks)):
             run_passes(chunks[i], 'js_opts_' + str(i), just_split='receiveJSON' in chunks[i], just_concat='emitJSON' in chunks[i])
       else:
-        # DEBUG 2, run each pass seperately
+        # DEBUG 2, run each pass separately
         for p in passes:
           js_optimizer_queue = [p]
           flush_js_optimizer_queue(p)

src/settings.js

@@ -315,7 +315,7 @@ var EXCEPTION_CATCHING_WHITELIST = [];  // Enables catching exception in the lis
 var ASYNCIFY = 0; // Whether to enable asyncify transformation
                   // This allows to inject some async functions to the C code that appear to be sync
                   // e.g. emscripten_sleep
-var ASYNCIFY_FUNCTIONS = ['emscripten_sleep', // Functions that call any funcion in the list, directly or indirectly
+var ASYNCIFY_FUNCTIONS = ['emscripten_sleep', // Functions that call any function in the list, directly or indirectly
                           'emscripten_wget',  // will be transformed
                           'emscripten_yield'];
 var ASYNCIFY_WHITELIST = ['qsort',   // Functions in this list are never considered async, even if they appear in ASYNCIFY_FUNCTIONS