make test: Pass --harmony-async-await so the AsyncFunction test will …

…run on Travis in the node.js 7 build.

Makefile

@@ -32,10 +32,13 @@ test-jasmine: ${TARGETS}
 test-jasmine-browser: create-html-runners unexpected.js
 	@./node_modules/.bin/serve .
 
-TEST_SOURCES = $(shell find test -name '*.spec.js') $(shell find documentation -name '*.md')
+# Pass --harmony-async-await so the AsyncFunction inspection test(s) will
+# get exercised with node.js 7 on Travis. Remove this when async/await
+# are no longer behind a switch:
 .PHONY: test
+TEST_SOURCES = $(shell find test -name '*.spec.js') $(shell find documentation -name '*.md')
 test: lint
-	@./node_modules/.bin/mocha $(TEST_SOURCES)
+	@./node_modules/.bin/mocha --harmony-async-await $(TEST_SOURCES)
 
 .PHONY: coverage
 coverage: