-have following GroovyScript.groovy script:

x = "a"
println getName(x)
def getName(a) {
    assert false
}

-run it from the IDE

=> prints following stacktrace in the output:

...
run-single:
Exception in thread "main" java.lang.AssertionError: Expression: false
        at org.codehaus.groovy.runtime.InvokerHelper.assertFailed(InvokerHelper.java:393)
        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.assertFailed(ScriptBytecodeAdapter.java:683)
        at GroovyScript.getName(GroovyScript.groovy:7)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        ...
        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnCurrentN(ScriptBytecodeAdapter.java:78)
        at GroovyScript.run(GroovyScript.groovy:3)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        ...
        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodN(ScriptBytecodeAdapter.java:170)
        at GroovyScript.main(GroovyScript.groovy)
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)

but there's no hyperlink for occurrences of known GroovyScript.groovy file from the output tab to the editor