Tests for constant propagation of StringBuilder.append()#5114

Merged

danpoe merged 2 commits intodiffblue:developfrom

danpoe:feature/string-builder-append

Oct 11, 2019

Commits on Sep 17, 2019

Add entry for StringBuilder.append(StringBuffer) to string preprocessing table
danpoe
committed

Commits on Sep 18, 2019

Add regression tests for constant propagation of StringBuilder.append()
danpoe
committed