[Refactoring] fix code style in compilable/interpret3.d
[Refactoring] Add exceptionOrCant to make error handling shorter
[Refactoring] reduce code indent depth
Return NULL from WithStatement::interpret()
Improve error messages in CTFE interpreter
[Refactoring] Remove Statement::interpret()

Conflicts:
	src/interpret.c
[Refactoring] Remove Expression::interpret()

Conflicts:
	src/interpret.c
[Refactoring] NULL Expression or Statement handling on interpret() call

Conflicts:
	src/interpret.c
[Refactoring] Add findGotoTarget to share common code
[Refactoring] Make interpretFourPointerRelation static

Explicitly returning result from the not trivial helper function would be better than implicit result setting.
+skipForJump

Conflicts:
	src/interpret.c
+fix Issue 5676
+clean up statement interpretation
+style