changed behaviour of isImplicitThis() in MethodCallExpression

The method isImplicitThis() in MethodCallExpression has changed its behaviour. At least after compilation phase SEMANTIC_ANALYSIS. After phase CONVERSION the behaviour would have been as expected.

Expected return values:

• anObj.methodCall() isImplicitThis() returns false
• this.println("anything") isImplicitThis() returns false
• println("anything") isImplicitThis() returns true

Return values at the moment (Revision: 10884) :

• anObj.methodCall() isImplicitThis() returns true
• this.println("anything") isImplicitThis() returns true
• println("anything) isImplicitThis() returns true

patches
------------
1. fix with Test

The patch depends (only test) on the patch attached to Jira issue: http://jira.codehaus.org/browse/GROOVY-2615
Sorry for this inconvenience