add test of debuginfo generation to gate tests

Author: adinn

substratevm/mx.substratevm/mx_substratevm.py

@@ -468,6 +468,19 @@ def svm_gate_body(args, tasks):
                 cinterfacetutorial([])
                 clinittest([])
 
+        with Task('image demos debuginfo', tasks, tags=[GraalTags.helloworld_debug]) as t:
+            if t:
+                if svm_java8():
+                    javac_image(['--output-path', svmbuild_dir()])
+                    javac_command = ['--javac-command', ' '.join(javac_image_command(svmbuild_dir()))]
+                else:
+                    # Building javac image currently only supported for Java 8
+                    javac_command = []
+                helloworld(['--output-path', svmbuild_dir()] + javac_command)
+                helloworld(['--output-path', svmbuild_dir(), '--shared', '-H:GenerateDebugInfo=1'])  # Build and run helloworld as shared library
+                cinterfacetutorial([])
+                clinittest([])
+
         with Task('native unittests', tasks, tags=[GraalTags.test]) as t:
             if t:
                 with tempfile.NamedTemporaryFile(mode='w') as blacklist: