fixed error with importing JSON with ProfilingPlugin

Author: shogunpurple

lib/debug/ProfilingPlugin.js

@@ -266,9 +266,11 @@ const interceptTemplateInstancesFrom = (compilation, tracer) => {
 };
 
 const interceptAllHooksFor = (instance, tracer, logLabel) => {
-	Object.keys(instance.hooks).forEach(hookName => {
-		instance.hooks[hookName].intercept(makeInterceptorFor(logLabel, tracer)(hookName));
-	});
+	if(Object.hasOwnProperty("hooks", instance)) {
+		Object.keys(instance.hooks).forEach(hookName => {
+			instance.hooks[hookName].intercept(makeInterceptorFor(logLabel, tracer)(hookName));
+		});
+	}
 };
 
 const interceptAllParserHooks = (moduleFactory, tracer) => {

test/configCases/plugins/profiling-plugin/index.js

@@ -1,3 +1,5 @@
+import "./test.json";
+
 it("should generate a events.json file", () => {
     var fs = require("fs"),
         path = require("path"),
@@ -13,4 +15,4 @@ it("should have proper setup record inside of the json stream", () => {
     // convert json stream to valid
     var source = JSON.parse(fs.readFileSync(path.join(os.tmpdir(), "events.json"), "utf-8").toString() + "{}]");
     source[0].id.should.eql(1);
-});
+});

test/configCases/plugins/profiling-plugin/test.json

@@ -0,0 +1,3 @@
+{
+  "json": "should work"
+}