Fixed Bug 442755 - [compiler] NPE at ProblemHandler.handle

Signed-off-by: shankha banerjee <shankhba@in.ibm.com>
Fixed Bug 440731 - [1.8][code select] Hover, F3 doesn't work for method
reference in method invocation of overloaded method

Signed-off-by: shankha banerjee <shankhba@in.ibm.com>
Fixed Bug 430572 - [1.8] CCE on hovering over 'super' in lambda
expression
Fixed Bug 435348 - [1.8][compiler] NPE in JDT Core during AST creation

Signed-off-by: shankha banerjee <shankhba@in.ibm.com>