line/column information patch for several nodes

This patch corrects the source position information in the following situations:

• MethodCallExpression
  • includes the callee and an appendedBlock (if there is one) to the method call
  • solved in grammar

• StaticMethodCallExpression
  • set the source position for StaticMethodCallExprssion when it is created
  • Solved in StaticImportVisitor

• indexPropertyArgs
  • set the source postion in terms like obj['prop'] correct
  • include the indexee if there is one
  • solved in grammar

• ConstructorCallExpression
  • ConstructorCallExpression includes now whole expression with the type, not only the 'new' operator
  • solved in grammar

• declaratorBrackets
  • DeclarationExpression like int[][][] array did only include the variable
  • now the whole expression
  • solved in grammar

• transfomed DeclarationExpression
  • a declaration that contains a class like def i = Integer.parseInt("42") had -1 as source position information
  • solved in ResolveVisitor: Set the source position of the unresolved expression to the resolved DeclarationExpression

• new create method for node creation
  • new create method of signature: public AST create(int type, String txt, AST first, Token last)
  • parameter 'first' is of type AST therefore a node can be used to set the start position
  • used in the patches above: MethodCallExpression, indexPropertyArgs

The test patch contains tests for the test environment described in GROOVY-259.
Due to the ConstructorCallExpression change, one test of GROOVY-2615 needed to be adapted. This is also patched with the test patch.