Added testcase for #25

Author: chbloemer

src/test/resources/testsGraalVM/cases/equals.html

@@ -0,0 +1,2 @@
+<p>This is true</p>
+<p>This is still true</p>

src/test/resources/testsGraalVM/cases/equals.pug

@@ -0,0 +1,11 @@
+- let showMessage = true
+- if(showMessage === true)
+    p This is true
+- else
+    p This is false
+
+- let isTrue = showMessage === true
+- if(isTrue)
+    p This is still true
+- else
+    p This is still false