move postfix templates to java-impl

java/java-tests/testData/codeInsight/template/postfix/templates/assert/methodInvocation.java

@@ -0,0 +1,11 @@
+package templates;
+
+public class Foo {
+    void m() {
+        bar().assert<caret>
+    }
+
+    boolean bar() {
+        return true;
+    }
+}