This commit fixes two issues in the existing implementation of translating primitive array types:
* IrType.getArrayElementType throws an exception when the receiver is a primitive array type, because IR expects primitive array types use symbols defined in IrBuiltIns, but fir2ir translation doesn't;
* IteratorNext.toCallable assumes all element types are boxed.
The first issue is fixed by changing the fir2ir type translation to use symbols in IrBuiltIns for primitive array types, and the second by not unboxing primitive types.
KT-3894: Loops and finally: finally block executed twice when break and return exists in try/finally block
KT-3874: Compilation error on try catch block contains break and continue
KT-3869: Loops and finally: outer finally block not run
#KT-3869 Fixed
#KT-3894 Fixed
#KT-3874 Fixed
Juan Chen