cobol: New testcases for reference modification.
gcc/testsuite
* cobol.dg/group2/Dynamic_reference_modification.cob: New
testcase.
* cobol.dg/group2/Length_overflow__1_.cob: Likewise.
* cobol.dg/group2/Length_overflow__2_.cob: Likewise.
* cobol.dg/group2/Length_overflow_with_offset__1_.cob:
Likewise.
* cobol.dg/group2/Length_overflow_with_offset__2_.cob:
Likewise.
* cobol.dg/group2/Length_overflow_with_offset__3_.cob:
Likewise.
* cobol.dg/group2/Offset_overflow.cob: Likewise.
* cobol.dg/group2/Offset_underflow.cob: Likewise.
*
cobol.dg/group2/Refmod__comparisons_inside_numeric-display.cob: Likewise.
* cobol.dg/group2/Refmod_sources_are_figurative_constants.cob:
Likewise.
* cobol.dg/group2/Static_reference_modification.cob: Likewise.
* cobol.dg/group2/Dynamic_reference_modification.out: New
known-good result.
* cobol.dg/group2/Length_overflow__1_.out: Likewise.
* cobol.dg/group2/Length_overflow__2_.out: Likewise.
* cobol.dg/group2/Length_overflow_with_offset__1_.out:
Likewise.
* cobol.dg/group2/Length_overflow_with_offset__2_.out:
Likewise.
* cobol.dg/group2/Length_overflow_with_offset__3_.out:
Likewise.
* cobol.dg/group2/Offset_overflow.out: Likewise.
* cobol.dg/group2/Offset_underflow.out: Likewise.
*
cobol.dg/group2/Refmod__comparisons_inside_numeric-display.out: Likewise.
* cobol.dg/group2/Refmod_sources_are_figurative_constants.out:
Likewise.
* cobol.dg/group2/Static_reference_modification.out: Likewise.
